Experience Sonic the Hedgehog once more. A classic from the old days. Knuckles knocks Sonic down, and there the game begins. Play Sonic vs Knuckles online at friv100000.com. You can play it in fullscreen to have fun with it. Sonic vs Knuckles is a great Friv 100000 game to play with no cost.

Use Arrow keys button to Move, Use Shift button to Jump, Use Ctrl button to Wall Jump,

sonic..