Nicketoons Unite Evil

The original Nickelodeon characters — Jimmy Neutron, Timmy Turner, Danny Phantom, and SpongeBob SquarePants — were on a mission against their evil counterparts: Nicktoons (Evil), Electron, Trazo, Nega-Timmy, and Dark Danny.
Electron had sent Timmy, Bob, and Danny to other dimensions. Being left alone with Jimmy was part of the plan.
After a long battle, Jimmy was retreating with the help of his robotic arms, but Electron also had some, and improved versions at that. When all seemed lost, you arrived. You had managed to escape the altered dimension, made easier by the fact that your evil counterpart... had died years ago.
You got here by cutting off one of Electron's robotic arms.

The idea is creative, I hope you like them.