Poster of Cast and Crew in Johnny Test - Johnny Grow Your Own Monster (Season 4 - Episode 27) - Johnny Grow Your Own Monster

Johnny Test - Season 4 - Johnny Grow Your Own Monster (Episode 27)

Plot: Johnny's mail order foam monster becomes a real monster once the twins swap the water with their bottle of "side effects".
Episode Aired On:
Tuesday, May 11 2010
15 years ago