A flash clone of the highly popular classic platform based on SEGA Sonic game. Ultimate Flash Sonic is a complete redesign of Sonic the Hegdehog in flash. The game plays very well and contains many of the elements of the original Sonic for Sega. Very fun and addicting! Instructions: Move: Left/Right Arrow. Jump: Spacebar. Spindash: Hold down, space then release down. Pause: Enter.