diff --git a/dungeonbattle/display/display_manager.py b/dungeonbattle/display/display_manager.py
index ea5c8ca..18b61c3 100644
--- a/dungeonbattle/display/display_manager.py
+++ b/dungeonbattle/display/display_manager.py
@@ -37,7 +37,7 @@ class DisplayManager:
         if self.game.state == GameMode.MAINMENU:
             self.mainmenudisplay.refresh(0, 0, self.rows, self.cols)
         if self.game.state == GameMode.SETTINGS:
-            self.settingsmenudisplay.refresh(0, 0, self.rows, self.cols-1)
+            self.settingsmenudisplay.refresh(0, 0, self.rows, self.cols - 1)
         self.resize_window()
 
     def resize_window(self) -> bool:
diff --git a/dungeonbattle/display/menudisplay.py b/dungeonbattle/display/menudisplay.py
index d25fe61..973dd31 100644
--- a/dungeonbattle/display/menudisplay.py
+++ b/dungeonbattle/display/menudisplay.py
@@ -1,3 +1,5 @@
+from typing import List
+
 from dungeonbattle.menus import Menu, MainMenu
 from .display import Display
 
@@ -54,7 +56,7 @@ class MenuDisplay(Display):
         return self.trueheight + 2
 
     @property
-    def values(self):
+    def values(self) -> List[str]:
         return [str(a) for a in self.menu.values]
 
 
diff --git a/dungeonbattle/game.py b/dungeonbattle/game.py
index 4bbe9b8..ff1c91e 100644
--- a/dungeonbattle/game.py
+++ b/dungeonbattle/game.py
@@ -93,7 +93,7 @@ class Game:
         elif key == ' ':
             return KeyValues.SPACE
 
-    def handle_key_pressed(self, key: KeyValues, screen) -> None:
+    def handle_key_pressed(self, key: KeyValues, screen: Any) -> None:
         """
         Indicates what should be done when the given key is pressed,
         according to the current game state.
@@ -103,7 +103,7 @@ class Game:
         elif self.state == GameMode.MAINMENU:
             self.handle_key_pressed_main_menu(key)
         elif self.state == GameMode.SETTINGS:
-            self.handle_key_pressed_settings(key,screen)
+            self.handle_key_pressed_settings(key, screen)
         self.display_refresh()
 
     def handle_key_pressed_play(self, key: KeyValues) -> None:
@@ -142,7 +142,7 @@ class Game:
             elif option == menus.MainMenuValues.EXIT:
                 sys.exit(0)
 
-    def handle_key_pressed_settings(self, key: KeyValues, screen : Any) -> None:
+    def handle_key_pressed_settings(self, key: KeyValues, screen: Any) -> None:
         """
         For now, in the settings mode, we can only go backwards.
         """
diff --git a/dungeonbattle/menus.py b/dungeonbattle/menus.py
index 06ef556..20a103e 100644
--- a/dungeonbattle/menus.py
+++ b/dungeonbattle/menus.py
@@ -31,12 +31,15 @@ class MainMenuValues(Enum):
 class MainMenu(Menu):
     values = [e for e in MainMenuValues]
 
-class SettingsMenu(Menu) :
+
+class SettingsMenu(Menu):
     def __init__(self):
         super().__init__()
-    def update_values(self, settings : Settings):
+
+    def update_values(self, settings: Settings) -> None:
         s = settings.dumps_to_string()
-        self.values = s[6:-2].replace("\"","").split(",\n    ")
+        self.values = s[6:-2].replace("\"", "").split(",\n    ")
+
 
 class ArbitraryMenu(Menu):
     def __init__(self, values: list):