S1·E26 Brainwash Boogie / Von Kreepsula's Return
Aired January 22, 2000
Synopsis
A) The latest pre-teen pop music sensation, the "Brainwaves", is all the rage with the kids at St. Faith's. B) Ever since Mona and Charley battled Von Kreepsula on his own turf and won, they've felt pretty confident that he'd be trapped forever in his comic book prison.