The Simpsons Cupcake Contest
Wikisimpsons - The Simpsons Wiki
The Simpson's Cupcake Contest was boardwalk style arcade game that was produced sometime around the late 1980's or early 1990's by Bromley.
Your goal was to see how many cupcakes (said cupcakes were actually balls that the Lisa CPU would drop at random) you could eat to outscore your computer or human opponent.
How this was achieved was by buttons that would open the mouth of both Bart and Homer. Not opening your mouth in time would result in the ball taking a plunge.
