It's a 2 player game. Best played with two controllers Use shockwaves to push the triangle enemies into your opponent. Hold A to pump up your shockwave to increase its power Pick up powerups to help you. H - Heals you S - Protective shield around you for a few seconds F - Freezes everything and your opponent for a few seconds P - Increases pump up power T - Slows enemies and your opponent B - BLACK HOLE BOMB - Press A to activate Just play till you're done! Runs best in Chrome and latest versions of firefox (with joypad enabled) - In fact Game controller is required until we add a way to pass the title screen with a keyboard... Source included.