Dude, That's My Ghost!

While trying to help Spencer get an authentic-sounding scream for his movies, Billy scares Mallory so badly that she decides to move away.

Ponzi finds a "no weirdos" rule in the school handbook; he invites himself to the Wright home to get evidence to kick Spencer out of school.

Spencer fears that he's going to bomb at the school talent show; Billy gets mixed into a batch of Jane's brownies.

Billy turns Spencer into a ghost; Billy feels neglected when Spencer pays more attention to a new video game than to him.

Spencer's plan to use Billy's ectoplasm to become famous goes wrong; Spencer is blackmailed into filming Ponzi's life story.

When Spencer shoots a movie in his pool, Billy's ectoplasm turns the film's harmless goldfish into a fearsome aquatic monster.