The Mutant Octopus is a common Earth octopus, which was mutated by Dr. Animo in the episode Divided We Stand.
He's main use was to attack people and defend Dr. Animo's base.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.
