Lisa Goes Gaga/Gags

Title screen gag
Bart slides down a giant beanstalk carrying a duck and a magical harp.

Couch gag

 * The Simpsons appear as Funtendo Zii avatars. Homer's avatar keeps falling off the sofa, much to his frustration. Outside of the game, the real Homer throws the Zii controller onto the floor and then falls off the sofa, just as his avatar was doing.