Press space on the title screen, press 0 on the start screen and use WASD to move and space to shoot at the ring. Get a score of 40 (it's very possible) to win. Make sure not to let Sonic touch the ring as it's moving or you won't have ears anymore.
Yong Yong for Sonic Adventure 7, SEGA for Sonic. End our misery. THIS 'GAME' IS MEANT TO HAVE POOR QUALITY
