Dark sonic would win period. Dark sonic can disintegrate anything he looks at. Sonic just turns super sonic and runs and were weolf form, but they are both still pretty good.
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hyper sonic he is in sonic and knuckles 3
Catwoman would win.
Nintendo Gamecube game. With Sonic, Knuckles, and Tails in the "HERO" side and Eggman/Robotnik, Rouge, and Shadow in the "DARK" side. You can also enter the "Chao World" to visit your chao. For more info on chaos go to http://chao.hippotank.com/
Sonic and Shadow would win, because Shadow CAN stop time and defeat mario and luigi, while sonic can turn super and knock luigi like a bowling ball. Mario might have fireballs, but Shadow has electric spears. Luigi has fireballs, Sonic has the speed of light. End Of Discussion.
Sonic turns to Dark Sonic in episode 67 (3rd season). It only just shows 5 seconds of his power, but....... Hope this answer helped. Oh, and the episode name is "The Black Trap" or "Teasing Time".