The City Bus was a typical transit bus that Captain Melonhead and Splinter The Wonder Wood boarded to catch the Eds during the events of the Big Picture Show. After they paid their fare, Melonhead got lost within the confines of the bus and lost Splinter. He then later found Splinter, who somehow was driving the bus. The bus then traveled through a freeway towards an unidentified city. The bus finally arrived at Mondo A-Go Go, near the end of the movie, where Melonhead and Splinter then confronted the Eds and "defeated" them despite the fact that the other kids had already forgiven the Eds for the prank they did. The bus seems to have more space inside than possible, similar to the Kankers' Trailer, though this is merely a common cartoon trope.