This is a big mix up: Bart and Homer Simpson are in Mario's world, the Mushroom kingdom! Choose your character and do exactly what you would do if your character was Super Mario. Jump up platforms and pipes, jump up to break the question mark blocks for coins, jump up on Goombas and Koopas to eliminate them while avoid touching them while you are on the ground. That pretty much covers everything!
Enjoy playing Bart & Homer in Mario World!
Use the arrow keys to move.