Cartoon Network: Battle for Volcano Island

Cartoon Network: Battle for Volcano Island is 2006 video game sequel to Cartoon Network Unite! Again featuring the characters of Ed, Edd n Eddy, Foster's Home for Imaginary Friends, The Grim Adventures of Billy and Mandy and Codename: Kids Next Door. Followed by Cartoon Network: Attack of the Toybots.

Plot
In an island world called Volcano Island, a crab named the Wise Old Crab and his two minions are gathering around a ritual at Summoner's rock to summon thirteen heroes to defeat their enemy, the Mawgu. However, the Mawgu breaks the circle of summoning, scattering the thirteen heroes. Where the Wise Old Crab is, Ed, Edd n Eddy and Grim, Billy and Mandy end up. The Wise Old Crab tells them the story about the Mawgu escaping from his prison and seeking vengeance. The Mawgu has created a terrible ooze corrupting all that it touches, as well as who and what touches it. According to their legend, the "Chosen Ones" can rescue everyone from the Mawgu Ooze.

The Eds, Grim, Billy and Mandy fight the Mawgu's minions, finding Mac and Bloo, Billy and Mandy's friends Erwin and Mindy, and the Eds' friends Nazz, Kevin, Jonny and Plank. They find one of Numbuh 1's communication devices, learning that the Mawgu's interruption of the ceremony left Sector V of the Kids Next Door back in their treehouse. Numbuh 1 also reveals that the rift above the volcano is siphoning energy from Sector V's home town, the Cul-De-Sac, Mac's home town and Endsville, to power up the Mawgu; if this continues for too long, it will suck up their worlds and destroy the multiverse.

Using Numbuh 2's blueprints, Erwin sends the rest of the heroes to collect parts for a Rift Zipper, to seal the rift and stop the Mawgu. Once completed, the thirteen heroes enter the volcano and travel up into the rift, where the Mawgu awaits them. Erwin, Mindy, Nazz, Mac, Bloo, and Jonny and Plank keep the Mawgu busy while Grim, Billy, Mandy, The Eds and Kevin ascend to through the debris sucked in from the other worlds, to the rift's core. The devices drains the Mawgu of his strength, allowing the closing rift to seal him forever.

The heroes then depart through a portal open by Sector V, so they can send them back to their respective worlds once back in their home town.

Playable characters

 * Ed
 * Edd
 * Eddy
 * Nazz
 * Jonny and Plank
 * Grim
 * Billy
 * Mandy
 * Erwin
 * Mac
 * Bloo

Trivia

 * Numbuh 1, Numbuh 2, Numbuh 3, Numbuh 4, Numbuh 5, Mindy and Kevin are the only characters that are non-playable in the game.