Nicktoons: Mermaids of the Deep is the sequel to the 2005 game Nicktoons Unite! and 2006 game Nicktoons: Battle for Volcano Island. It is also the prequel to the game Nicktoons: Globs of Doom. There are playable characters on all platforms from Nickelodeon television series including SpongeBob SquarePants, Danny Phantom, The Fairly OddParents, The Adventures of Jimmy Neutron: Boy Genius and Tak and the Power of Juju .