diff --git a/squirrelbattle/game.py b/squirrelbattle/game.py
index 7807882..1b856e7 100644
--- a/squirrelbattle/game.py
+++ b/squirrelbattle/game.py
@@ -110,14 +110,28 @@ class Game:
                 move_down = y != self.map.start_y and x != self.map.start_x
                 old_map = self.map
                 self.map_index += 1 if move_down else -1
-                self.map_index = max(0, self.map_index)
+                if self.map_index == -1:
+                    self.map_index = 0
+                    return
                 while self.map_index >= len(self.maps):
                     self.maps.append(Map.load(ResourceManager.get_asset_path(
                         "example_map_2.txt")))
                 new_map = self.map
                 old_map.remove_entity(self.player)
                 new_map.add_entity(self.player)
-                self.player.move(self.map.start_y, self.map.start_x)
+                if move_down:
+                    self.player.move(self.map.start_y, self.map.start_x)
+                elif KeyValues.translate_key(key, self.settings) \
+                        in [KeyValues.UP, KeyValues.DOWN,
+                            KeyValues.LEFT, KeyValues.RIGHT]:
+                    ladder_y, ladder_x = -1, -1
+                    for y in range(self.map.height):
+                        for x in range(self.map.width):
+                            if (y, x) != (self.map.start_y, self.map.start_x) \
+                               and self.map.tiles[y][x].is_ladder():
+                                ladder_y, ladder_x = y, x
+                                break
+                    self.player.move(ladder_y, ladder_x)
                 self.display_actions(DisplayActions.UPDATE)
 
     def handle_key_pressed(self, key: Optional[KeyValues], raw_key: str = '')\