Sonic the Fighters

Sonic the Fighters is a 3D fighting game in which players compete in one-on-one battles with characters from the Sonic the Hedgehog franchise. In the game's scenario, Sonic the Hedgehog and his friends each own one of the Chaos Emeralds. They are holding a fighting tournament to determine who will take the emeralds to power a spaceship and stop series antagonists Doctor Robotnik and Metal Sonic from building an evil fortress in space. (wikipedia.org)