diff --git a/src/assets/.asset_manifest_public.json b/src/assets/.asset_manifest_public.json
index 77a4d8a3..5180433c 100644
--- a/src/assets/.asset_manifest_public.json
+++ b/src/assets/.asset_manifest_public.json
@@ -66,13 +66,9 @@
  "ba_data/python/baclassic/__pycache__/_analytics.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_appdelegate.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_benchmark.cpython-311.opt-1.pyc",
- "ba_data/python/baclassic/__pycache__/_campaign.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_input.cpython-311.opt-1.pyc",
- "ba_data/python/baclassic/__pycache__/_level.cpython-311.opt-1.pyc",
- "ba_data/python/baclassic/__pycache__/_lobby.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_music.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_net.cpython-311.opt-1.pyc",
- "ba_data/python/baclassic/__pycache__/_profile.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_servermode.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_store.cpython-311.opt-1.pyc",
  "ba_data/python/baclassic/__pycache__/_subsystem.cpython-311.opt-1.pyc",
@@ -87,13 +83,9 @@
  "ba_data/python/baclassic/_analytics.py",
  "ba_data/python/baclassic/_appdelegate.py",
  "ba_data/python/baclassic/_benchmark.py",
- "ba_data/python/baclassic/_campaign.py",
  "ba_data/python/baclassic/_input.py",
- "ba_data/python/baclassic/_level.py",
- "ba_data/python/baclassic/_lobby.py",
  "ba_data/python/baclassic/_music.py",
  "ba_data/python/baclassic/_net.py",
- "ba_data/python/baclassic/_profile.py",
  "ba_data/python/baclassic/_servermode.py",
  "ba_data/python/baclassic/_store.py",
  "ba_data/python/baclassic/_subsystem.py",
@@ -133,6 +125,7 @@
  "ba_data/python/bascenev1/__pycache__/_activitytypes.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_actor.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_appmode.cpython-311.opt-1.pyc",
+ "ba_data/python/bascenev1/__pycache__/_campaign.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_collision.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_coopgame.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_coopsession.cpython-311.opt-1.pyc",
@@ -145,6 +138,8 @@
  "ba_data/python/bascenev1/__pycache__/_gameresults.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_gameutils.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_hooks.cpython-311.opt-1.pyc",
+ "ba_data/python/bascenev1/__pycache__/_level.cpython-311.opt-1.pyc",
+ "ba_data/python/bascenev1/__pycache__/_lobby.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_map.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_messages.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_multiteamsession.cpython-311.opt-1.pyc",
@@ -153,6 +148,7 @@
  "ba_data/python/bascenev1/__pycache__/_player.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_playlist.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_powerup.cpython-311.opt-1.pyc",
+ "ba_data/python/bascenev1/__pycache__/_profile.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_score.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_session.cpython-311.opt-1.pyc",
  "ba_data/python/bascenev1/__pycache__/_settings.cpython-311.opt-1.pyc",
@@ -164,6 +160,7 @@
  "ba_data/python/bascenev1/_activitytypes.py",
  "ba_data/python/bascenev1/_actor.py",
  "ba_data/python/bascenev1/_appmode.py",
+ "ba_data/python/bascenev1/_campaign.py",
  "ba_data/python/bascenev1/_collision.py",
  "ba_data/python/bascenev1/_coopgame.py",
  "ba_data/python/bascenev1/_coopsession.py",
@@ -176,6 +173,8 @@
  "ba_data/python/bascenev1/_gameresults.py",
  "ba_data/python/bascenev1/_gameutils.py",
  "ba_data/python/bascenev1/_hooks.py",
+ "ba_data/python/bascenev1/_level.py",
+ "ba_data/python/bascenev1/_lobby.py",
  "ba_data/python/bascenev1/_map.py",
  "ba_data/python/bascenev1/_messages.py",
  "ba_data/python/bascenev1/_multiteamsession.py",
@@ -184,6 +183,7 @@
  "ba_data/python/bascenev1/_player.py",
  "ba_data/python/bascenev1/_playlist.py",
  "ba_data/python/bascenev1/_powerup.py",
+ "ba_data/python/bascenev1/_profile.py",
  "ba_data/python/bascenev1/_score.py",
  "ba_data/python/bascenev1/_session.py",
  "ba_data/python/bascenev1/_settings.py",
diff --git a/src/assets/Makefile b/src/assets/Makefile
index 86319938..8e9795e2 100644
--- a/src/assets/Makefile
+++ b/src/assets/Makefile
@@ -181,13 +181,9 @@ SCRIPT_TARGETS_PY_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/baclassic/_analytics.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_appdelegate.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_benchmark.py \
-  $(BUILD_DIR)/ba_data/python/baclassic/_campaign.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_input.py \
-  $(BUILD_DIR)/ba_data/python/baclassic/_level.py \
-  $(BUILD_DIR)/ba_data/python/baclassic/_lobby.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_music.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_net.py \
-  $(BUILD_DIR)/ba_data/python/baclassic/_profile.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_servermode.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_store.py \
   $(BUILD_DIR)/ba_data/python/baclassic/_subsystem.py \
@@ -205,6 +201,7 @@ SCRIPT_TARGETS_PY_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/bascenev1/_activitytypes.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_actor.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_appmode.py \
+  $(BUILD_DIR)/ba_data/python/bascenev1/_campaign.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_collision.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_coopgame.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_coopsession.py \
@@ -217,6 +214,8 @@ SCRIPT_TARGETS_PY_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/bascenev1/_gameresults.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_gameutils.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_hooks.py \
+  $(BUILD_DIR)/ba_data/python/bascenev1/_level.py \
+  $(BUILD_DIR)/ba_data/python/bascenev1/_lobby.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_map.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_messages.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_multiteamsession.py \
@@ -225,6 +224,7 @@ SCRIPT_TARGETS_PY_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/bascenev1/_player.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_playlist.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_powerup.py \
+  $(BUILD_DIR)/ba_data/python/bascenev1/_profile.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_score.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_session.py \
   $(BUILD_DIR)/ba_data/python/bascenev1/_settings.py \
@@ -453,13 +453,9 @@ SCRIPT_TARGETS_PYC_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_analytics.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_appdelegate.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_benchmark.cpython-311.opt-1.pyc \
-  $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_campaign.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_input.cpython-311.opt-1.pyc \
-  $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_level.cpython-311.opt-1.pyc \
-  $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_lobby.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_music.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_net.cpython-311.opt-1.pyc \
-  $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_profile.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_servermode.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_store.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/baclassic/__pycache__/_subsystem.cpython-311.opt-1.pyc \
@@ -477,6 +473,7 @@ SCRIPT_TARGETS_PYC_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_activitytypes.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_actor.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_appmode.cpython-311.opt-1.pyc \
+  $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_campaign.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_collision.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_coopgame.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_coopsession.cpython-311.opt-1.pyc \
@@ -489,6 +486,8 @@ SCRIPT_TARGETS_PYC_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_gameresults.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_gameutils.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_hooks.cpython-311.opt-1.pyc \
+  $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_level.cpython-311.opt-1.pyc \
+  $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_lobby.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_map.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_messages.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_multiteamsession.cpython-311.opt-1.pyc \
@@ -497,6 +496,7 @@ SCRIPT_TARGETS_PYC_PUBLIC = \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_player.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_playlist.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_powerup.cpython-311.opt-1.pyc \
+  $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_profile.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_score.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_session.cpython-311.opt-1.pyc \
   $(BUILD_DIR)/ba_data/python/bascenev1/__pycache__/_settings.cpython-311.opt-1.pyc \
diff --git a/src/assets/ba_data/python/baclassic/__init__.py b/src/assets/ba_data/python/baclassic/__init__.py
index 145e272c..aaa77a86 100644
--- a/src/assets/ba_data/python/baclassic/__init__.py
+++ b/src/assets/ba_data/python/baclassic/__init__.py
@@ -31,17 +31,10 @@ directly, it will most likely not work without classic present.
 import logging
 
 from baclassic._subsystem import ClassicSubsystem
-from baclassic._campaign import Campaign
-from baclassic._level import Level
-from baclassic._lobby import Lobby, Chooser
 from baclassic._achievement import Achievement, AchievementSubsystem
 
 __all__ = [
     'ClassicSubsystem',
-    'Campaign',
-    'Level',
-    'Lobby',
-    'Chooser',
     'Achievement',
     'AchievementSubsystem',
 ]
diff --git a/src/assets/ba_data/python/baclassic/_subsystem.py b/src/assets/ba_data/python/baclassic/_subsystem.py
index f325ba51..567605db 100644
--- a/src/assets/ba_data/python/baclassic/_subsystem.py
+++ b/src/assets/ba_data/python/baclassic/_subsystem.py
@@ -16,6 +16,7 @@ import bascenev1
 from babase._general import Call
 from babase._appsubsystem import AppSubsystem
 from babase._general import AppTime
+from bascenev1 import _profile
 import _baclassic
 from baclassic._music import MusicSubsystem
 from baclassic._accountv1 import AccountV1Subsystem
@@ -26,12 +27,12 @@ from baclassic._tips import get_all_tips
 from baclassic._store import StoreSubsystem
 from baclassic._ui import UISubsystem
 from baclassic import _input
-from baclassic import _profile
 
 if TYPE_CHECKING:
     from typing import Callable, Any, Sequence
 
     import babase
+    import bauiv1
     import baclassic
     from bastd.actor import spazappearance
     from baclassic._appdelegate import AppDelegate
@@ -54,9 +55,9 @@ class ClassicSubsystem(AppSubsystem):
     # baclassic/__init__.py. This way this version can be used for
     # runtime via babase.app.classic which enforces handling of the
     # package-not-present case.
-    from baclassic._level import Level
-    from baclassic._campaign import Campaign
-    from baclassic._lobby import Lobby, Chooser
+    from bascenev1._level import Level
+    from bascenev1._campaign import Campaign
+    from bascenev1._lobby import Lobby, Chooser
     from baclassic._music import MusicPlayMode  # FIXME move 2 subsys
 
     def __init__(self) -> None:
@@ -71,7 +72,7 @@ class ClassicSubsystem(AppSubsystem):
         self.ui = UISubsystem()
 
         # Co-op Campaigns.
-        self.campaigns: dict[str, baclassic.Campaign] = {}
+        self.campaigns: dict[str, bascenev1.Campaign] = {}
         self.custom_coop_practice_games: list[str] = []
 
         # Lobby.
@@ -169,7 +170,7 @@ class ClassicSubsystem(AppSubsystem):
     def on_app_launching(self) -> None:
         """Called when the app is first entering the launching state."""
         # pylint: disable=too-many-locals
-        from baclassic import _campaign
+        from bascenev1 import _campaign
         from bascenev1 import _map
         from bastd.actor import spazappearance
         from bastd import maps as stdmaps
@@ -325,7 +326,7 @@ class ClassicSubsystem(AppSubsystem):
                     # FIXME: This should not be an actor attr.
                     activity.paused_text = None
 
-    def add_coop_practice_level(self, level: baclassic.Level) -> None:
+    def add_coop_practice_level(self, level: bascenev1.Level) -> None:
         """Adds an individual level to the 'practice' section in Co-op."""
 
         # Assign this level to our catch-all campaign.
@@ -523,7 +524,7 @@ class ClassicSubsystem(AppSubsystem):
 
         return _tournament.get_tournament_prize_strings(entry)
 
-    def getcampaign(self, name: str) -> baclassic.Campaign:
+    def getcampaign(self, name: str) -> bascenev1.Campaign:
         """Return a campaign by name."""
         return self.campaigns[name]
 
@@ -751,6 +752,14 @@ class ClassicSubsystem(AppSubsystem):
 
         return TeamSeriesVictoryScoreScreenActivity
 
+    def get_team_victory_score_screen_activity(
+        self,
+    ) -> type[bascenev1.Activity]:
+        """(internal)"""
+        from bastd.activity.dualteamscore import TeamVictoryScoreScreenActivity
+
+        return TeamVictoryScoreScreenActivity
+
     def get_free_for_all_victory_score_screen_activity(
         self,
     ) -> type[bascenev1.Activity]:
@@ -760,3 +769,82 @@ class ClassicSubsystem(AppSubsystem):
         )
 
         return FreeForAllVictoryScoreScreenActivity
+
+    def get_coop_join_activity(self) -> type[bascenev1.Activity]:
+        """(internal)"""
+        from bastd.activity.coopjoin import CoopJoinActivity
+
+        return CoopJoinActivity
+
+    def get_coop_score_screen(self) -> type[bascenev1.Activity]:
+        """(internal)"""
+        from bastd.activity.coopscore import CoopScoreScreen
+
+        return CoopScoreScreen
+
+    def get_multi_team_join_activity(self) -> type[bascenev1.Activity]:
+        """(internal)"""
+        from bastd.activity.multiteamjoin import MultiTeamJoinActivity
+
+        return MultiTeamJoinActivity
+
+    def get_tutorial_activity(self) -> type[bascenev1.Activity]:
+        """(internal)"""
+        from bastd.tutorial import TutorialActivity
+
+        return TutorialActivity
+
+    def tournament_entry_window(
+        self,
+        tournament_id: str,
+        tournament_activity: bascenev1.Activity | None = None,
+        position: tuple[float, float] = (0.0, 0.0),
+        delegate: Any = None,
+        scale: float | None = None,
+        offset: tuple[float, float] = (0.0, 0.0),
+        on_close_call: Callable[[], Any] | None = None,
+    ) -> None:
+        """(internal)"""
+        from bastd.ui.tournamententry import TournamentEntryWindow
+
+        TournamentEntryWindow(
+            tournament_id,
+            tournament_activity,
+            position,
+            delegate,
+            scale,
+            offset,
+            on_close_call,
+        )
+
+    def get_main_menu_session(self) -> type[bascenev1.Session]:
+        """(internal)"""
+        from bastd.mainmenu import MainMenuSession
+
+        return MainMenuSession
+
+    def continues_window(
+        self,
+        activity: bascenev1.Activity,
+        cost: int,
+        continue_call: Callable[[], Any],
+        cancel_call: Callable[[], Any],
+    ) -> None:
+        """(internal)"""
+        from bastd.ui.continues import ContinuesWindow
+
+        ContinuesWindow(activity, cost, continue_call, cancel_call)
+
+    def profile_browser_window(
+        self,
+        transition: str = 'in_right',
+        in_main_menu: bool = True,
+        selected_profile: str | None = None,
+        origin_widget: bauiv1.Widget | None = None,
+    ) -> None:
+        """(internal)"""
+        from bastd.ui.profile.browser import ProfileBrowserWindow
+
+        ProfileBrowserWindow(
+            transition, in_main_menu, selected_profile, origin_widget
+        )
diff --git a/src/assets/ba_data/python/bascenev1/__init__.py b/src/assets/ba_data/python/bascenev1/__init__.py
index 63e212fc..dee16c64 100644
--- a/src/assets/ba_data/python/bascenev1/__init__.py
+++ b/src/assets/ba_data/python/bascenev1/__init__.py
@@ -147,6 +147,9 @@ from bascenev1._freeforallsession import FreeForAllSession
 from bascenev1._gameactivity import GameActivity
 from bascenev1._score import ScoreType, ScoreConfig
 from bascenev1._dualteamsession import DualTeamSession
+from bascenev1._lobby import Lobby, Chooser
+from bascenev1._campaign import Campaign
+from bascenev1._level import Level
 from bascenev1._messages import (
     UNHANDLED,
     OutOfBoundsMessage,
@@ -385,6 +388,10 @@ __all__ = [
     'AppIntentExec',
     'AppMode',
     'SceneV1AppMode',
+    'Lobby',
+    'Chooser',
+    'Campaign',
+    'Level',
 ]
 
 # Sanity check: we want to keep ballistica's dependencies and
diff --git a/src/assets/ba_data/python/bascenev1/_activity.py b/src/assets/ba_data/python/bascenev1/_activity.py
index 87cf9560..e7d1140e 100644
--- a/src/assets/ba_data/python/bascenev1/_activity.py
+++ b/src/assets/ba_data/python/bascenev1/_activity.py
@@ -22,7 +22,6 @@ from bascenev1._player import Player
 
 if TYPE_CHECKING:
     from typing import Any
-    import baclassic
     import bascenev1
 
 PlayerT = TypeVar('PlayerT', bound=Player)
diff --git a/src/assets/ba_data/python/bascenev1/_activitytypes.py b/src/assets/ba_data/python/bascenev1/_activitytypes.py
index 4f290b50..e71ca45c 100644
--- a/src/assets/ba_data/python/bascenev1/_activitytypes.py
+++ b/src/assets/ba_data/python/bascenev1/_activitytypes.py
@@ -18,7 +18,7 @@ from bascenev1._music import MusicType, setmusic
 if TYPE_CHECKING:
     import babase
     import bascenev1
-    from baclassic._lobby import JoinInfo
+    from bascenev1._lobby import JoinInfo
 
 
 class EndSessionActivity(Activity[EmptyPlayer, EmptyTeam]):
@@ -41,14 +41,17 @@ class EndSessionActivity(Activity[EmptyPlayer, EmptyTeam]):
 
     def on_begin(self) -> None:
         # pylint: disable=cyclic-import
-        from bastd.mainmenu import MainMenuSession
+
+        assert _babase.app.classic is not None
         from babase._general import Call
 
+        main_menu_session = _babase.app.classic.get_main_menu_session()
+
         super().on_begin()
         _babase.unlock_all_input()
         assert _babase.app.classic is not None
         _babase.app.classic.ads.call_after_ad(
-            Call(_bascenev1.new_host_session, MainMenuSession)
+            Call(_bascenev1.new_host_session, main_menu_session)
         )
 
 
@@ -110,10 +113,10 @@ class TransitionActivity(Activity[EmptyPlayer, EmptyTeam]):
 
     def on_transition_in(self) -> None:
         # pylint: disable=cyclic-import
-        from bastd.actor import background  # FIXME: Don't use bastd from here.
+        from bastd.actor.background import Background
 
         super().on_transition_in()
-        self._background = background.Background(
+        self._background = Background(
             fade_time=0.5, start_faded=False, show_logo=False
         )
 
diff --git a/src/assets/ba_data/python/baclassic/_campaign.py b/src/assets/ba_data/python/bascenev1/_campaign.py
similarity index 97%
rename from src/assets/ba_data/python/baclassic/_campaign.py
rename to src/assets/ba_data/python/bascenev1/_campaign.py
index d18d2c24..30d580e5 100644
--- a/src/assets/ba_data/python/baclassic/_campaign.py
+++ b/src/assets/ba_data/python/bascenev1/_campaign.py
@@ -10,10 +10,10 @@ import _babase
 if TYPE_CHECKING:
     from typing import Any
     import babase
-    import baclassic
+    import bascenev1
 
 
-def register_campaign(campaign: baclassic.Campaign) -> None:
+def register_campaign(campaign: bascenev1.Campaign) -> None:
     """Register a new campaign."""
     assert _babase.app.classic is not None
     _babase.app.classic.campaigns[campaign.name] = campaign
@@ -29,11 +29,11 @@ class Campaign:
         self,
         name: str,
         sequential: bool = True,
-        levels: list[baclassic.Level] | None = None,
+        levels: list[bascenev1.Level] | None = None,
     ):
         self._name = name
         self._sequential = sequential
-        self._levels: list[baclassic.Level] = []
+        self._levels: list[bascenev1.Level] = []
         if levels is not None:
             for level in levels:
                 self.addlevel(level)
@@ -49,7 +49,7 @@ class Campaign:
         return self._sequential
 
     def addlevel(
-        self, level: baclassic.Level, index: int | None = None
+        self, level: bascenev1.Level, index: int | None = None
     ) -> None:
         """Adds a baclassic.Level to the Campaign."""
         if level.campaign is not None:
@@ -61,11 +61,11 @@ class Campaign:
             self._levels.insert(index, level)
 
     @property
-    def levels(self) -> list[baclassic.Level]:
+    def levels(self) -> list[bascenev1.Level]:
         """The list of baclassic.Level-s in the Campaign."""
         return self._levels
 
-    def getlevel(self, name: str) -> baclassic.Level:
+    def getlevel(self, name: str) -> bascenev1.Level:
         """Return a contained baclassic.Level by name."""
         from babase import _error
 
@@ -104,7 +104,7 @@ class Campaign:
 def init_campaigns() -> None:
     """Fill out initial default Campaigns."""
     # pylint: disable=cyclic-import
-    from baclassic._level import Level
+    from bascenev1._level import Level
     from bastd.game.onslaught import OnslaughtGame
     from bastd.game.football import FootballCoopGame
     from bastd.game.runaround import RunaroundGame
diff --git a/src/assets/ba_data/python/bascenev1/_coopgame.py b/src/assets/ba_data/python/bascenev1/_coopgame.py
index bf45e9ae..5dddd624 100644
--- a/src/assets/ba_data/python/bascenev1/_coopgame.py
+++ b/src/assets/ba_data/python/bascenev1/_coopgame.py
@@ -15,7 +15,6 @@ if TYPE_CHECKING:
     from typing import Sequence
     from bastd.actor.playerspaz import PlayerSpaz
     import babase
-    import baclassic
     import bascenev1
 
 PlayerT = TypeVar('PlayerT', bound='bascenev1.Player')
diff --git a/src/assets/ba_data/python/bascenev1/_coopsession.py b/src/assets/ba_data/python/bascenev1/_coopsession.py
index 265fe4f2..f2ffa5ec 100644
--- a/src/assets/ba_data/python/bascenev1/_coopsession.py
+++ b/src/assets/ba_data/python/bascenev1/_coopsession.py
@@ -12,7 +12,6 @@ from bascenev1._session import Session
 if TYPE_CHECKING:
     from typing import Any, Callable, Sequence
     import babase
-    import baclassic
     import bascenev1
 
 TEAM_COLORS = [(0.2, 0.4, 1.6)]
@@ -36,27 +35,29 @@ class CoopSession(Session):
     # Note: even though these are instance vars, we annotate them at the
     # class level so that docs generation can access their types.
 
-    campaign: baclassic.Campaign | None
+    campaign: bascenev1.Campaign | None
     """The baclassic.Campaign instance this Session represents, or None if
        there is no associated Campaign."""
 
     def __init__(self) -> None:
         """Instantiate a co-op mode session."""
         # pylint: disable=cyclic-import
-        from bastd.activity.coopjoin import CoopJoinActivity
 
         _babase.increment_analytics_count('Co-op session start')
         app = _babase.app
-        assert app.classic is not None
+        classic = app.classic
+        assert classic is not None
+
+        coop_join_activity = classic.get_coop_join_activity()
 
         # If they passed in explicit min/max, honor that.
         # Otherwise defer to user overrides or defaults.
-        if 'min_players' in app.classic.coop_session_args:
-            min_players = app.classic.coop_session_args['min_players']
+        if 'min_players' in classic.coop_session_args:
+            min_players = classic.coop_session_args['min_players']
         else:
             min_players = 1
-        if 'max_players' in app.classic.coop_session_args:
-            max_players = app.classic.coop_session_args['max_players']
+        if 'max_players' in classic.coop_session_args:
+            max_players = classic.coop_session_args['max_players']
         else:
             max_players = app.config.get('Coop Game Max Players', 4)
 
@@ -72,21 +73,21 @@ class CoopSession(Session):
         )
 
         # Tournament-ID if we correspond to a co-op tournament (otherwise None)
-        self.tournament_id: str | None = app.classic.coop_session_args.get(
+        self.tournament_id: str | None = classic.coop_session_args.get(
             'tournament_id'
         )
 
-        self.campaign = app.classic.getcampaign(
-            app.classic.coop_session_args['campaign']
+        self.campaign = classic.getcampaign(
+            classic.coop_session_args['campaign']
         )
-        self.campaign_level_name: str = app.classic.coop_session_args['level']
+        self.campaign_level_name: str = classic.coop_session_args['level']
 
         self._ran_tutorial_activity = False
         self._tutorial_activity: bascenev1.Activity | None = None
         self._custom_menu_ui: list[dict[str, Any]] = []
 
         # Start our joining screen.
-        self.setactivity(_bascenev1.newactivity(CoopJoinActivity))
+        self.setactivity(_bascenev1.newactivity(coop_join_activity))
 
         self._next_game_instance: bascenev1.GameActivity | None = None
         self._next_game_level_name: str | None = None
@@ -112,6 +113,9 @@ class CoopSession(Session):
         # pylint: disable=cyclic-import
         from bascenev1._gameactivity import GameActivity
 
+        classic = _babase.app.classic
+        assert classic is not None
+
         # Instantiate levels we may be running soon to let them load in the bg.
 
         # Build an instance for the current level.
@@ -134,7 +138,7 @@ class CoopSession(Session):
         levels = self.campaign.levels
         level = self.campaign.getlevel(self.campaign_level_name)
 
-        nextlevel: baclassic.Level | None
+        nextlevel: bascenev1.Level | None
         if level.index < len(levels) - 1:
             nextlevel = levels[level.index + 1]
         else:
@@ -166,9 +170,8 @@ class CoopSession(Session):
             and self._tutorial_activity is None
             and not self._ran_tutorial_activity
         ):
-            from bastd.tutorial import TutorialActivity
-
-            self._tutorial_activity = _bascenev1.newactivity(TutorialActivity)
+            tutorial_activity = classic.get_tutorial_activity()
+            self._tutorial_activity = _bascenev1.newactivity(tutorial_activity)
 
     def get_custom_menu_entries(self) -> list[dict[str, Any]]:
         return self._custom_menu_ui
@@ -220,14 +223,14 @@ class CoopSession(Session):
         self, resume_callback: Callable[[], Any]
     ) -> None:
         # pylint: disable=cyclic-import
-        from bastd.ui.tournamententry import TournamentEntryWindow
         from bascenev1._gameactivity import GameActivity
 
+        assert _babase.app.classic is not None
         activity = self.getactivity()
         if activity is not None and not activity.expired:
             assert self.tournament_id is not None
             assert isinstance(activity, GameActivity)
-            TournamentEntryWindow(
+            _babase.app.classic.tournament_entry_window(
                 tournament_id=self.tournament_id,
                 tournament_activity=activity,
                 on_close_call=resume_callback,
@@ -267,8 +270,6 @@ class CoopSession(Session):
         # pylint: disable=cyclic-import
         from babase._language import Lstr
         from babase._general import WeakCall
-        from bastd.tutorial import TutorialActivity
-        from bastd.activity.coopscore import CoopScoreScreen
         from bascenev1._gameresults import GameResults
         from bascenev1._player import PlayerInfo
         from bascenev1._activitytypes import JoinActivity, TransitionActivity
@@ -276,6 +277,11 @@ class CoopSession(Session):
         from bascenev1._score import ScoreType
 
         app = _babase.app
+        classic = app.classic
+        assert classic is not None
+
+        tutorial_activity = classic.get_tutorial_activity()
+        coop_score_screen = classic.get_coop_score_screen()
 
         # If we're running a TeamGameActivity we'll have a GameResults
         # as results. Otherwise its an old CoopGameActivity so its giving
@@ -297,7 +303,7 @@ class CoopSession(Session):
         # If we're in a between-round activity or a restart-activity,
         # hop into a round.
         if isinstance(
-            activity, (JoinActivity, CoopScoreScreen, TransitionActivity)
+            activity, (JoinActivity, coop_score_screen, TransitionActivity)
         ):
             if outcome == 'next_level':
                 if self._next_game_instance is None:
@@ -357,7 +363,7 @@ class CoopSession(Session):
 
         # If we were in a tutorial, just pop a transition to get to the
         # actual round.
-        elif isinstance(activity, TutorialActivity):
+        elif isinstance(activity, tutorial_activity):
             self.setactivity(_bascenev1.newactivity(TransitionActivity))
         else:
             playerinfos: list[bascenev1.PlayerInfo]
@@ -424,7 +430,7 @@ class CoopSession(Session):
             else:
                 self.setactivity(
                     _bascenev1.newactivity(
-                        CoopScoreScreen,
+                        coop_score_screen,
                         {
                             'playerinfos': playerinfos,
                             'score': score,
diff --git a/src/assets/ba_data/python/bascenev1/_dualteamsession.py b/src/assets/ba_data/python/bascenev1/_dualteamsession.py
index 6dea02f5..09a38de6 100644
--- a/src/assets/ba_data/python/bascenev1/_dualteamsession.py
+++ b/src/assets/ba_data/python/bascenev1/_dualteamsession.py
@@ -34,17 +34,21 @@ class DualTeamSession(MultiTeamSession):
 
     def _switch_to_score_screen(self, results: bascenev1.GameResults) -> None:
         # pylint: disable=cyclic-import
-        from bastd.activity.drawscore import DrawScoreScreenActivity
-        from bastd.activity.dualteamscore import TeamVictoryScoreScreenActivity
-        from bastd.activity.multiteamvictory import (
-            TeamSeriesVictoryScoreScreenActivity,
-        )
+        classic = _babase.app.classic
+        assert classic is not None
 
+        draw_score_screen_activity = classic.get_draw_score_screen_activity()
+        team_victory_score_screen_activity = (
+            classic.get_team_series_victory_score_screen_activity()
+        )
+        team_series_victory_score_screen_activity = (
+            classic.get_team_series_victory_score_screen_activity()
+        )
         winnergroups = results.winnergroups
 
         # If everyone has the same score, call it a draw.
         if len(winnergroups) < 2:
-            self.setactivity(_bascenev1.newactivity(DrawScoreScreenActivity))
+            self.setactivity(_bascenev1.newactivity(draw_score_screen_activity))
         else:
             winner = winnergroups[0].teams[0]
             winner.customdata['score'] += 1
@@ -53,12 +57,13 @@ class DualTeamSession(MultiTeamSession):
             if winner.customdata['score'] >= (self._series_length - 1) / 2 + 1:
                 self.setactivity(
                     _bascenev1.newactivity(
-                        TeamSeriesVictoryScoreScreenActivity, {'winner': winner}
+                        team_series_victory_score_screen_activity,
+                        {'winner': winner},
                     )
                 )
             else:
                 self.setactivity(
                     _bascenev1.newactivity(
-                        TeamVictoryScoreScreenActivity, {'winner': winner}
+                        team_victory_score_screen_activity, {'winner': winner}
                     )
                 )
diff --git a/src/assets/ba_data/python/bascenev1/_gameactivity.py b/src/assets/ba_data/python/bascenev1/_gameactivity.py
index 7512e9cc..6180e75c 100644
--- a/src/assets/ba_data/python/bascenev1/_gameactivity.py
+++ b/src/assets/ba_data/python/bascenev1/_gameactivity.py
@@ -27,7 +27,6 @@ if TYPE_CHECKING:
     from bastd.actor.bomb import TNTSpawner
     import babase
     import bascenev1
-    import baclassic
 
 PlayerT = TypeVar('PlayerT', bound='bascenev1.Player')
 TeamT = TypeVar('TeamT', bound='bascenev1.Team')
@@ -435,9 +434,12 @@ class GameActivity(Activity[PlayerT, TeamT]):
         """
         # pylint: disable=too-many-nested-blocks
         # pylint: disable=cyclic-import
-        from bastd.ui.continues import ContinuesWindow
         from bascenev1._coopsession import CoopSession
 
+        classic = _babase.app.classic
+        assert classic is not None
+        continues_window = classic.continues_window
+
         plus = _babase.app.plus
         try:
             if plus is not None and plus.get_v1_account_misc_read_val(
@@ -464,7 +466,7 @@ class GameActivity(Activity[PlayerT, TeamT]):
                                 with _babase.ContextRef.empty():
                                     _babase.apptimer(
                                         0.5,
-                                        lambda: ContinuesWindow(
+                                        lambda: continues_window(
                                             self,
                                             self._continue_cost,
                                             continue_call=WeakCall(
diff --git a/src/assets/ba_data/python/bascenev1/_hooks.py b/src/assets/ba_data/python/bascenev1/_hooks.py
index 93f1e835..949a31fa 100644
--- a/src/assets/ba_data/python/bascenev1/_hooks.py
+++ b/src/assets/ba_data/python/bascenev1/_hooks.py
@@ -17,9 +17,9 @@ if TYPE_CHECKING:
 
 
 def launch_main_menu_session() -> None:
-    from bastd.mainmenu import MainMenuSession
+    assert _babase.app.classic is not None
 
-    _bascenev1.new_host_session(MainMenuSession)
+    _bascenev1.new_host_session(_babase.app.classic.get_main_menu_session())
 
 
 def get_player_icon(sessionplayer: bascenev1.SessionPlayer) -> dict[str, Any]:
diff --git a/src/assets/ba_data/python/baclassic/_level.py b/src/assets/ba_data/python/bascenev1/_level.py
similarity index 91%
rename from src/assets/ba_data/python/baclassic/_level.py
rename to src/assets/ba_data/python/bascenev1/_level.py
index fc12af56..13f7dd9a 100644
--- a/src/assets/ba_data/python/baclassic/_level.py
+++ b/src/assets/ba_data/python/bascenev1/_level.py
@@ -7,18 +7,14 @@ import copy
 import weakref
 from typing import TYPE_CHECKING
 
-import _bauiv1
-
 if TYPE_CHECKING:
     from typing import Any
 
-    import baclassic
     import bascenev1
-    import bauiv1
 
 
 class Level:
-    """An entry in a baclassic.Campaign consisting of a name, game type, and settings.
+    """An entry in a bascenev1.Campaign.
 
     Category: **Gameplay Classes**
     """
@@ -36,7 +32,7 @@ class Level:
         self._settings = settings
         self._preview_texture_name = preview_texture_name
         self._displayname = displayname
-        self._campaign: weakref.ref[baclassic.Campaign] | None = None
+        self._campaign: weakref.ref[bascenev1.Campaign] | None = None
         self._index: int | None = None
         self._score_version_string: str | None = None
 
@@ -63,9 +59,9 @@ class Level:
         """The preview texture name for this Level."""
         return self._preview_texture_name
 
-    def get_preview_texture(self) -> bauiv1.Texture:
-        """Load/return the preview Texture for this Level."""
-        return _bauiv1.gettexture(self._preview_texture_name)
+    # def get_preview_texture(self) -> bauiv1.Texture:
+    #     """Load/return the preview Texture for this Level."""
+    #     return _bauiv1.gettexture(self._preview_texture_name)
 
     @property
     def displayname(self) -> bascenev1.Lstr:
@@ -90,7 +86,7 @@ class Level:
         return self._gametype
 
     @property
-    def campaign(self) -> baclassic.Campaign | None:
+    def campaign(self) -> bascenev1.Campaign | None:
         """The baclassic.Campaign this Level is associated with, or None."""
         return None if self._campaign is None else self._campaign()
 
@@ -174,7 +170,7 @@ class Level:
         assert isinstance(val, dict)
         return val
 
-    def set_campaign(self, campaign: baclassic.Campaign, index: int) -> None:
+    def set_campaign(self, campaign: bascenev1.Campaign, index: int) -> None:
         """For use by baclassic.Campaign when adding levels to itself.
 
         (internal)"""
diff --git a/src/assets/ba_data/python/baclassic/_lobby.py b/src/assets/ba_data/python/bascenev1/_lobby.py
similarity index 98%
rename from src/assets/ba_data/python/baclassic/_lobby.py
rename to src/assets/ba_data/python/bascenev1/_lobby.py
index fefad3e7..2dd709cc 100644
--- a/src/assets/ba_data/python/baclassic/_lobby.py
+++ b/src/assets/ba_data/python/bascenev1/_lobby.py
@@ -13,14 +13,13 @@ import _babase
 from babase._error import print_exception, print_error, NotFoundError
 from babase._language import Lstr
 from babase._mgen.enums import SpecialChar, InputType
-from bascenev1._gameutils import animate, animate_array
 import _bascenev1
-from baclassic._profile import get_player_profile_colors
+from bascenev1._profile import get_player_profile_colors
+from bascenev1._gameutils import animate, animate_array
 
 if TYPE_CHECKING:
     from typing import Any, Sequence
 
-    import baclassic
     import bascenev1
 
 MAX_QUICK_CHANGE_COUNT = 30
@@ -32,7 +31,7 @@ QUICK_CHANGE_RESET_INTERVAL = 1.0
 class JoinInfo:
     """Display useful info for joiners."""
 
-    def __init__(self, lobby: baclassic.Lobby):
+    def __init__(self, lobby: bascenev1.Lobby):
         from bascenev1._nodeactor import NodeActor
         from babase._general import WeakCall
 
@@ -121,8 +120,6 @@ class JoinInfo:
         self._timer = _bascenev1.Timer(4.0, WeakCall(self._update), repeat=True)
 
     def _update_for_keyboard(self, keyboard: bascenev1.InputDevice) -> None:
-        from baclassic import _input
-
         classic = _babase.app.classic
         assert classic is not None
 
@@ -164,7 +161,7 @@ class JoinInfo:
 class PlayerReadyMessage:
     """Tells an object a player has been selected from the given chooser."""
 
-    chooser: baclassic.Chooser
+    chooser: bascenev1.Chooser
 
 
 @dataclass
@@ -354,7 +351,7 @@ class Chooser:
         ):
             app.classic.lobby_random_profile_index += 1
         if app.classic.lobby_random_profile_index < len(profilenames):
-            profileindex = app.classic.lobby_random_profile_index
+            profileindex: int = app.classic.lobby_random_profile_index
             app.classic.lobby_random_profile_index += 1
             return profileindex
         assert '_random' in profilenames
@@ -384,14 +381,14 @@ class Chooser:
         return self.lobby.sessionteams[self._selected_team_index]
 
     @property
-    def lobby(self) -> baclassic.Lobby:
+    def lobby(self) -> bascenev1.Lobby:
         """The chooser's baclassic.Lobby."""
         lobby = self._lobby()
         if lobby is None:
             raise NotFoundError('Lobby does not exist.')
         return lobby
 
-    def get_lobby(self) -> baclassic.Lobby | None:
+    def get_lobby(self) -> bascenev1.Lobby | None:
         """Return this chooser's lobby if it still exists; otherwise None."""
         return self._lobby()
 
@@ -581,15 +578,17 @@ class Chooser:
 
     def _set_ready(self, ready: bool) -> None:
         # pylint: disable=cyclic-import
-        from bastd.ui.profile import browser as pbrowser
         from babase._general import Call
 
+        classic = _babase.app.classic
+        assert classic is not None
+
         profilename = self._profilenames[self._profileindex]
 
         # Handle '_edit' as a special case.
         if profilename == '_edit' and ready:
             with _babase.ContextRef.empty():
-                pbrowser.ProfileBrowserWindow(in_main_menu=False)
+                classic.profile_browser_window(in_main_menu=False)
 
                 # Give their input-device UI ownership too
                 # (prevent someone else from snatching it in crowded games)
diff --git a/src/assets/ba_data/python/bascenev1/_map.py b/src/assets/ba_data/python/bascenev1/_map.py
index bd8d75c1..4a13dc49 100644
--- a/src/assets/ba_data/python/bascenev1/_map.py
+++ b/src/assets/ba_data/python/bascenev1/_map.py
@@ -15,7 +15,6 @@ if TYPE_CHECKING:
     from typing import Sequence, Any
 
     import babase
-    import baclassic
     import bascenev1
 
 
@@ -66,7 +65,8 @@ def get_map_class(name: str) -> type[Map]:
     assert _babase.app.classic is not None
     name = get_filtered_map_name(name)
     try:
-        return _babase.app.classic.maps[name]
+        mapclass: type[Map] = _babase.app.classic.maps[name]
+        return mapclass
     except KeyError:
         from babase import _error
 
diff --git a/src/assets/ba_data/python/bascenev1/_multiteamsession.py b/src/assets/ba_data/python/bascenev1/_multiteamsession.py
index b27bad93..2899c43d 100644
--- a/src/assets/ba_data/python/bascenev1/_multiteamsession.py
+++ b/src/assets/ba_data/python/bascenev1/_multiteamsession.py
@@ -41,12 +41,14 @@ class MultiTeamSession(Session):
         """Set up playlists & launch a bascenev1.Activity to accept joiners."""
         # pylint: disable=cyclic-import
         from bascenev1 import _playlist
-        from bastd.activity.multiteamjoin import MultiTeamJoinActivity
 
         app = _babase.app
-        assert app.classic is not None
+        classic = app.classic
+        assert classic is not None
         cfg = app.config
 
+        multi_team_join_activity = classic.get_multi_team_join_activity()
+
         if self.use_teams:
             team_names = cfg.get('Custom Team Names', DEFAULT_TEAM_NAMES)
             team_colors = cfg.get('Custom Team Colors', DEFAULT_TEAM_COLORS)
@@ -65,18 +67,18 @@ class MultiTeamSession(Session):
             max_players=self.get_max_players(),
         )
 
-        self._series_length = app.classic.teams_series_length
-        self._ffa_series_length = app.classic.ffa_series_length
+        self._series_length: int = classic.teams_series_length
+        self._ffa_series_length: int = classic.ffa_series_length
 
         show_tutorial = cfg.get('Show Tutorial', True)
 
         self._tutorial_activity_instance: bascenev1.Activity | None
         if show_tutorial:
-            from bastd.tutorial import TutorialActivity
+            tutorial_activity = classic.get_tutorial_activity()
 
             # Get this loading.
             self._tutorial_activity_instance = _bascenev1.newactivity(
-                TutorialActivity
+                tutorial_activity
             )
         else:
             self._tutorial_activity_instance = None
@@ -131,7 +133,7 @@ class MultiTeamSession(Session):
         self._instantiate_next_game()
 
         # Start in our custom join screen.
-        self.setactivity(_bascenev1.newactivity(MultiTeamJoinActivity))
+        self.setactivity(_bascenev1.newactivity(multi_team_join_activity))
 
     def get_ffa_series_length(self) -> int:
         """Return free-for-all series length."""
@@ -173,16 +175,19 @@ class MultiTeamSession(Session):
         self, activity: bascenev1.Activity, results: Any
     ) -> None:
         # pylint: disable=cyclic-import
-        from bastd.tutorial import TutorialActivity
-        from bastd.activity.multiteamvictory import (
-            TeamSeriesVictoryScoreScreenActivity,
-        )
         from bascenev1._activitytypes import (
             TransitionActivity,
             JoinActivity,
             ScoreScreenActivity,
         )
 
+        classic = _babase.app.classic
+        assert classic is not None
+        tutorial_activity = classic.get_tutorial_activity()
+        team_series_victory_score_screen_activity = (
+            classic.get_team_series_victory_score_screen_activity()
+        )
+
         # If we have a tutorial to show, that's the first thing we do no
         # matter what.
         if self._tutorial_activity_instance is not None:
@@ -192,7 +197,7 @@ class MultiTeamSession(Session):
         # If we're leaving the tutorial activity, pop a transition activity
         # to transition us into a round gracefully (otherwise we'd snap from
         # one terrain to another instantly).
-        elif isinstance(activity, TutorialActivity):
+        elif isinstance(activity, tutorial_activity):
             self.setactivity(_bascenev1.newactivity(TransitionActivity))
 
         # If we're in a between-round activity or a restart-activity, hop
@@ -201,7 +206,7 @@ class MultiTeamSession(Session):
             activity, (JoinActivity, TransitionActivity, ScoreScreenActivity)
         ):
             # If we're coming from a series-end activity, reset scores.
-            if isinstance(activity, TeamSeriesVictoryScoreScreenActivity):
+            if isinstance(activity, team_series_victory_score_screen_activity):
                 self.stats.reset()
                 self._game_number = 0
                 for team in self.sessionteams:
diff --git a/src/assets/ba_data/python/baclassic/_profile.py b/src/assets/ba_data/python/bascenev1/_profile.py
similarity index 100%
rename from src/assets/ba_data/python/baclassic/_profile.py
rename to src/assets/ba_data/python/bascenev1/_profile.py
diff --git a/src/assets/ba_data/python/bascenev1/_session.py b/src/assets/ba_data/python/bascenev1/_session.py
index 652ddace..6276542c 100644
--- a/src/assets/ba_data/python/bascenev1/_session.py
+++ b/src/assets/ba_data/python/bascenev1/_session.py
@@ -16,7 +16,6 @@ if TYPE_CHECKING:
     from typing import Sequence, Any
 
     import babase
-    import baclassic
     import bascenev1
 
 
@@ -47,7 +46,7 @@ class Session:
     # at the class level so that looks better and nobody get lost while
     # reading large __init__
 
-    lobby: baclassic.Lobby
+    lobby: bascenev1.Lobby
     """The baclassic.Lobby instance where new bascenev1.Player-s go to select
        a Profile/Team/etc. before being added to games.
        Be aware this value may be None if a Session does not allow
@@ -93,12 +92,12 @@ class Session:
         # pylint: disable=cyclic-import
         # pylint: disable=too-many-branches
         from efro.util import empty_weakref
-        from baclassic._lobby import Lobby
         from bascenev1._dependency import (
             Dependency,
             AssetPackage,
             DependencyError,
         )
+        from bascenev1._lobby import Lobby
         from bascenev1._stats import Stats
         from bascenev1._gameactivity import GameActivity
         from bascenev1._activity import Activity
@@ -409,7 +408,6 @@ class Session:
         will replace the old.
         """
         from babase._general import Call
-        from babase._mgen.enums import TimeType
 
         # Only pay attention if this is coming from our current activity.
         if activity is not self._activity_retained:
@@ -436,7 +434,7 @@ class Session:
 
     def handlemessage(self, msg: Any) -> Any:
         """General message handling; can be passed any message object."""
-        from baclassic._lobby import PlayerReadyMessage
+        from bascenev1._lobby import PlayerReadyMessage
         from bascenev1._messages import PlayerProfilesChangedMessage, UNHANDLED
 
         if isinstance(msg, PlayerReadyMessage):
@@ -629,7 +627,7 @@ class Session:
                     self._activity_should_end_immediately_delay,
                 )
 
-    def _on_player_ready(self, chooser: baclassic.Chooser) -> None:
+    def _on_player_ready(self, chooser: bascenev1.Chooser) -> None:
         """Called when a bascenev1.Player has checked themself ready."""
         lobby = chooser.lobby
         activity = self._activity_weak()
@@ -691,7 +689,7 @@ class Session:
                 _babase.pushcall(self.begin_next_activity)
 
     def _add_chosen_player(
-        self, chooser: baclassic.Chooser
+        self, chooser: bascenev1.Chooser
     ) -> bascenev1.SessionPlayer:
         from bascenev1._team import SessionTeam
 
diff --git a/src/assets/ba_data/python/bastd/activity/coopscore.py b/src/assets/ba_data/python/bastd/activity/coopscore.py
index 7bcf89a4..56528e1a 100644
--- a/src/assets/ba_data/python/bastd/activity/coopscore.py
+++ b/src/assets/ba_data/python/bastd/activity/coopscore.py
@@ -50,7 +50,7 @@ class CoopScoreScreen(bs.Activity[bs.Player, bs.Team]):
         self._menu_icon_texture = bui.gettexture('menuIcon')
         self._next_level_icon_texture = bui.gettexture('nextLevelIcon')
 
-        self._campaign: baclassic.Campaign = settings['campaign']
+        self._campaign: bs.Campaign = settings['campaign']
 
         self._have_achievements = (
             bs.app.classic is not None
diff --git a/src/assets/ba_data/python/bastd/ui/coop/gamebutton.py b/src/assets/ba_data/python/bastd/ui/coop/gamebutton.py
index ea22a7ba..2bd3a86c 100644
--- a/src/assets/ba_data/python/bastd/ui/coop/gamebutton.py
+++ b/src/assets/ba_data/python/bastd/ui/coop/gamebutton.py
@@ -87,7 +87,9 @@ class GameButton:
             size=(image_width, image_width * 0.5),
             mesh_transparent=window.lsbt,
             mesh_opaque=window.lsbo,
-            texture=campaign.getlevel(levelname).get_preview_texture(),
+            texture=bui.gettexture(
+                campaign.getlevel(levelname).preview_texture_name
+            ),
             mask_texture=bui.gettexture('mapPreviewMask'),
         )
 
diff --git a/src/assets/ba_data/python/bastd/ui/coop/tournamentbutton.py b/src/assets/ba_data/python/bastd/ui/coop/tournamentbutton.py
index 66a6e777..4c71488d 100644
--- a/src/assets/ba_data/python/bastd/ui/coop/tournamentbutton.py
+++ b/src/assets/ba_data/python/bastd/ui/coop/tournamentbutton.py
@@ -584,7 +584,9 @@ class TournamentButton:
             bui.textwidget(edit=self.button_text, text=txt)
             bui.imagewidget(
                 edit=self.image,
-                texture=campaign.getlevel(levelname).get_preview_texture(),
+                texture=bui.gettexture(
+                    campaign.getlevel(levelname).preview_texture_name
+                ),
                 opacity=1.0 if enabled else 0.5,
             )