Sonic Bash!

The idea of this game is that you and another friend of yours selects a character (one being Sonic and the other being Tails) and you both battle it out to try to gain as many hits on Eggman. The catch is that Eggman only gets destroyed when the timer runs down to 0 (unless it's a draw at that time, then, it will wait for another hit). The player with the most hits at the end of the timer, wins! You can also win if the other player dies before the timer runs out. The amount of wins are tallied up on the results screen where you can either retry or change settings.

This hack made by redhotsonic