I didn't quite get what i was to do after i may or may not have starved the customers to death.
For your main menu, i would recommend lowering the brightness of the tiles just so the players can see the text you wrote in red, its would be less work for the players, same goes for the main game play, since the tiled ground is just background, it shouldn't be as loud as the rest of the elements in the game screaming for attention.
The game does sound good, and the bell was probably the reason my customers died of starvation XD.