Mouse Trap plays similarly to Pac-Man. The player is a mouse, attempting to eat all of the cheese on the board, while avoiding being caught by the cats that roam the maze. Players collect special power pellets that can be stored until needed. When activated, the power-up turns the mouse into a dog for a limited time, who can then chase and eat the cats. However, a hawk will randomly swoop down onto the board in an attempt to kill the mouse. The hawk will kill the mouse, even if it is in "dog mode".