Mr Marvelous is an Exclusive Galactic-Mythic mutant which can only be found in the Mutants Super-Heroes Reactor collection. It is granted as a reward to players who collect all 5 mutants in the collection. It is unbreedable and cannot be upgraded or downgraded.
Mr Marvelous is a tall man wearing a purple superhero suit with a red cape which covers his hair. He has chains on his arms, belt, and legs which are later used as weapon when executing his Spirit Chains attack.
- Attack: Cataclysmal
- Life: Tank
- Speed: Intermediate
Mr Marvelous is the embodiment of "Evil Genius". Feared and admired in equal measures, his power is matched only by his ego. Appearing in the arena to show the world he is the greatest, he will let nothing stand in his way of his march to victory.
- He appears to be a reference to Spawn (Al Simmons), the main protagonist from the comic book Spawn.
- He also appears to be a reference to either Dr. Strange or Shazam, from Marvel and D.C. respectively.