Krusty's Super Fun House is set in a world where Krusty the Clown's house has been taken over by a group of rats. The game's protagonist must work with the help of other Simpsons characters to herd the rats into trap machines, which will clear out the infestation.
The gameplay involves manipulating objects such as blocks, fans, and pipes to create pathways for the rats. The goal is to guide the rats into the correct direction, using the objects to redirect their movement. Along the way, players must also interact with other Simpsons characters who operate the trap machines.