Arrows: Move. Up Arrow: Jump. Down Arrow: Crouch. Down Arrow + Space: Block. Shift: Pick up/Use. Backspace: Pause.
Sonic Smash Brothers is a game that takes opponents off the stage before they defeat you. Attack the opponent and increase his damage, because the higher the damage, the more likely it is to be removed from the stage. The game has 4 modes:
Adventure: Play through story mode to gain points.
Single: Play a quick game against the computer.
Challenges: Attempt various challenges.
Practice: Learn how to play the game and get hints and tips.
You can participate in practice mode before entering a real fight.