DESC: Now you can watch the wild underwater antics of SpongeBob SquarePants on your Game Boy® Advance! Bring 4 of the very best episodes with you, anywhere you go! MERMAIDMAN & BARNACLEBOY: SpongeBob and Patrick hear that their beloved TV superheroes, Mermaidman and Barnacleboy, are living in a nearby retirement home. The aging duo discover their toughest challenge yet will be resisting pressure to "un-retire."