Unlock the following costumes by performing the corresponding tasks:
COSTUME - HOW TO UNLOCK Captain America's Bucky costume - Defeat Captain America in a Classic Battle on Hard. Dr Doom's Metal costume - Defeat Dr Doom in a Classic battle on Medium. Hulk's Red Hulk costume - Defeat Hulk in King of the Fractal on Hard. Iron Man's War Machine costume - Defeat Iron Man in a Super Weapon Battle on Hard. Magneto's Dark costume - Defeat Magneto in a King of the Fractal battle on Easy. Spiderman's 2099 costume - Defeat Spiderman in a Super Weapon battle on Easy. Thor's Modern costume - Defeat Thor in King of the Fractal on Medium. Wolverine's Brown Suit - Defeat Wolverine in a Classic battle on Medium.