Maniac is a genocidal serial killer Cyborian renegade. He destroys entire populations of planets by engineering deadly chain reactions that devastate any world he's messing with. Maniac usually act like a psychopathic lunatic but should not be underestimated. He's far more intelligent than he acts.
Maniac is heavily armed with some of the best that Cyborian weaponry can provide. He has a giant sawblade on each shoulder than can launch and run a path of destruction before returning to him. He has an even larger sawblad that comes from the joint section of his chest but doens't launch. He carries weaponry capable of annihilating an entire city in one launch. He very rarely does that in a fight because he enjoys the destruction he causes on smaller scales too much.
Maniac has tried to destroy Earth several times, stopped by Earth's heroes and protectors each time. Now he considers Earth heroes fun to play with and occasionally kill. He has killed two members of World Legion named Skyscraper (human with elasticity) and Jack Frost (elven with thermo-cold powers). He has killed a large number of human soldiers and law enforcement. Maniac sometimes pairs up with Captain Bizarre for amusement.
The team Last of Their Kind is formed of people who are the last of their kind because Maniac destroyed their planets.
Maniac's Galaxy Zento Stats are: STR: 10 END: 10 SPE: 7 AGL: 2 MNT: 8