I have it for xbox and ps2 and have played it for gamecube as well.... no one beats me on any system... and the only difference from them is slightly better/worse graphics that are hardly noticeable and the controller. I personally play best with ps2 controller because it has 4 trigger buttons, but the worst controller is the gamecubes... my fingers always seem to hit more then one button at once because they are all crowded together to fit a child's hand. The best way to play SC2 is at the arcade though.