By default, the game is over if a monster touches the player.

To change what happens when a monster touches a player, open MazeGame.py.  In the main while loop, find the line 'if len(pygame.sprite.spritecollide(player, monster_sprites, False)) > 0:'.  This checks whether the player is touching any monsters.

TO MAKE THE MONSTER DIE:
To kill the monster if the player touches it, change False to True in the line we just found.

TO MAKE THE GAME CONTINUE:
Replace the next line ('game_over = True') with whatever you want to happen instead.  This could be making the user answer a question, etc.