Krusty's Fun House is a video game based on the cartoon series The Simpsons. It was developed by Fox Williams for the British software house Audiogenic, and released in 1992 for the Amiga, NES, IBM PC, Sega Master System, Sega Game Gear, Game Boy, Super NES and Sega Mega Drive/Genesis. The 16-bit versions on the Super NES and the Mega Drive/Genesis were entitled Krusty's Super Fun House.

The player directs small rats to an extermination area through complicated maze-like levels. The player controls Krusty the Clown, who must create a path for the rats to follow and guide them towards an extermination device.

nymx uses a few tricks to manipulate blocks and beat the game in record time.

Note: This run has been commentated on by the author and some RTA runners, you can watch it here.