If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Super Smash Bros with Sonic characters. Play with Sonic, Tails or Knuckles and unlock other characters throughout the game.Reach the goal before the timer runs out.
Arrow keys Left/Right- To move.
Arrow key Up/Down- To jump/crouch.
Space bar - To attack.
Other instruction are in the game.