Checkpoint 1: Create player

I created an agent the shape of a penguin. I used the retro lab to help guide its movement and how to run the program.
The penguin moves left, right, up, and down. I noticed that when I move it over to the far right, the wall disappears. I think that's something I need to work on while figuring out collision detection.
However, my penguin does not move beyond the board.

maze_game.py

@@ -0,0 +1,8 @@
+from retro.game import Game
+from player import Player
+
+board_size = (100, 40)
+player = Player(board_size)
+
+game = Game([player], {}, board_size=board_size)
+game.play()