Experience Sonic the Hedgehog once more. A classic from the old days. Knuckles knocks Sonic down, and there the game begins. Enter to be happy playing Sonic vs Knuckles game with no fees at friv9.org. Come to enjoy Sonic vs Knuckles game now and the latest Friv 9 games online for free.

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

sonic..