Drop a .nes ROM anywhere on the page (or pick one below) to start.
Local 2-player: load a ROM and play — both players share this keyboard. Online: the host loads a ROM, picks a room name, and clicks Host game. The friend enters the same room name and clicks Join game — the game is sent to them automatically, no file needed. You steer your character with the Player 1 keys. Auto-save: the host saves the game every 10 s. If you get disconnected, just Host again to resume where you left off. New game clears the save and starts fresh.
Player 1: Arrow keys · X=A · Z=B · Enter=Start · Right Shift=Select Player 2 (local only):W A S D · G=A · F=B · T=Start · R=Select