diff --git a/arcade/gui/widgets/text.py b/arcade/gui/widgets/text.py
index 05b30af31..90077bd29 100644
--- a/arcade/gui/widgets/text.py
+++ b/arcade/gui/widgets/text.py
@@ -23,7 +23,6 @@
 from arcade.types import RGBA255, Color, RGBOrA255, RGB
 
 
-
 class UILabel(UIWidget):
     """A simple text label. This widget is meant to display user instructions or
     information. This label supports multiline text.
@@ -488,8 +487,10 @@ def __init__(
 
         # Set how fast the mouse scroll wheel will scroll text in the pane.
         # Measured in pixels per 'click'
-        self.scroll_speed = scroll_speed if scroll_speed is not None \
-                            else font_size
+        self.scroll_speed = (
+            scroll_speed if scroll_speed is not None
+            else font_size
+        )
 
         self.doc: AbstractDocument = pyglet.text.decode_text(text)
         self.doc.set_style(
@@ -551,7 +552,7 @@ def do_render(self, surface: Surface):
     def on_event(self, event: UIEvent) -> Optional[bool]:
         if isinstance(event, UIMouseScrollEvent):
             if self.rect.collide_with_point(event.x, event.y):
-                self.layout.view_y += event.scroll_y * self.scroll_speed
+                self.layout.view_y += event.scroll_y * self.scroll_speed   # type: ignore  # pending https://github.com/pyglet/pyglet/issues/916
                 self.trigger_full_render()
 
         if super().on_event(event):
diff --git a/arcade/physics_engines.py b/arcade/physics_engines.py
index 413afce3f..fa300fa00 100644
--- a/arcade/physics_engines.py
+++ b/arcade/physics_engines.py
@@ -4,11 +4,13 @@
 # pylint: disable=too-many-arguments, too-many-locals, too-few-public-methods
 
 import math
-from typing import Iterable, List, Optional, Union
+from typing import Iterable, List, Optional, Union, cast
 
 from arcade import (
+    BasicSprite,
     Sprite,
     SpriteList,
+    SpriteType,
     check_for_collision,
     check_for_collision_with_lists
 )
@@ -53,7 +55,7 @@ def _circular_check(player: Sprite, walls: List[SpriteList]):
         vary *= 2
 
 
-def _move_sprite(moving_sprite: Sprite, walls: List[SpriteList], ramp_up: bool) -> List[Sprite]:
+def _move_sprite(moving_sprite: Sprite, walls: List[SpriteList[SpriteType]], ramp_up: bool) -> List[SpriteType]:
 
     # See if we are starting this turn with a sprite already colliding with us.
     if len(check_for_collision_with_lists(moving_sprite, walls)) > 0:
@@ -109,7 +111,7 @@ def _move_sprite(moving_sprite: Sprite, walls: List[SpriteList], ramp_up: bool)
 
                 # NOTE: Not all sprites have velocity
                 if getattr(item, "change_x", 0.0) != 0:
-                    moving_sprite.center_x += item.change_x
+                    moving_sprite.center_x += item.change_x  # type: ignore
 
             # print(f"Spot Y ({self.player_sprite.center_x}, {self.player_sprite.center_y})")
         else:
@@ -230,12 +232,12 @@ class PhysicsEngineSimple:
         This can be one or multiple spritelists.
     """
 
-    def __init__(self, player_sprite: Sprite, walls: Union[SpriteList, Iterable[SpriteList]]):
+    def __init__(self, player_sprite: Sprite, walls: Union[SpriteList[BasicSprite], Iterable[SpriteList[BasicSprite]]]):
         assert isinstance(player_sprite, Sprite)
 
         if walls:
             if isinstance(walls, SpriteList):
-                self.walls = [walls]
+                self.walls = [cast(SpriteList[BasicSprite], walls)]
             else:
                 self.walls = list(walls)
         else:
diff --git a/arcade/sprite_list/collision.py b/arcade/sprite_list/collision.py
index f6c4f6abb..322e0ca54 100644
--- a/arcade/sprite_list/collision.py
+++ b/arcade/sprite_list/collision.py
@@ -59,7 +59,7 @@ def get_closest_sprite(
     return sprite_list[min_pos], min_distance
 
 
-def check_for_collision(sprite1: SpriteType, sprite2: SpriteType) -> bool:
+def check_for_collision(sprite1: BasicSprite, sprite2: BasicSprite) -> bool:
     """
     Check for a collision between two sprites.