If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
It's Betaman versus Betaman in this action-packed fighting game. You can combine attacks with directions. You can combine a Dash and Block to Roll (during which you are blocked from attacks). Kick Betaman's butt.
AD or Left/Right - Move.
WS or Up/Down - Jump/Crouch.
J or 1 (numpad) - Attack.
K or 2 (numpad) - Special Attack.
L or 3 (numpad) - Block.
Double-Tap Left/Right - Dash.
Dash + Block - Roll.