unlocked doors now get saved between checkpoints, correctly,

Scenes/Prefabs/Entities/Enemies/Muncher.tscn

@@ -51,6 +51,7 @@ metadata/_custom_type_script = "uid://bpydbpyjk1mt4"
 metadata/block_spawn_offset = Vector2(0, -8)
 
 [node name="Sprite" type="AnimatedSprite2D" parent="."]
+process_mode = 1
 sprite_frames = SubResource("SpriteFrames_6tj01")
 frame_progress = 0.602985
 script = ExtResource("2_fcan1")

Scenes/Prefabs/Entities/Objects/BuzzyBeetleShell.tscn

@@ -20,6 +20,9 @@ size = Vector2(12, 12)
 [node name="BuzzyBeetleShell" type="CharacterBody2D" node_paths=PackedStringArray("on_screen_enabler", "score_note_adder") groups=["Enemies"]]
 collision_layer = 32
 collision_mask = 6
+floor_constant_speed = true
+floor_max_angle = 0.87266463
+floor_snap_length = 4.0
 script = ExtResource("1_67hvo")
 on_screen_enabler = NodePath("VisibleOnScreenEnabler2D")
 score_note_adder = NodePath("ScoreNoteSpawner")

Scenes/Prefabs/Entities/Objects/Cannon.tscn

@@ -89,4 +89,6 @@ script = SubResource("GDScript_ywjuo")
 [node name="Timer" type="Timer" parent="."]
 wait_time = 3.0
 
+[node name="VisibleOnScreenEnabler2D" type="VisibleOnScreenEnabler2D" parent="."]
+
 [connection signal="timeout" from="Timer" to="." method="shoot"]