Press Space to start the game, and press space to jump. Don't hit the ball.
Obviously, credit to my good friend deadmanace3 for making the original game. Credit to Sega and Aspect Co. Ltd for making the original Sonic 2 for Game Gear and Master System. Credit to Philip "Dr. Mack Foxx" Byard, John "EspioKaos" Weeks and Thomas "Recorderdude" Hart for the music, which comes from the album "8-Bit Sonic 2- Piano Redux".