WASD or all arrow keys to move. SPACE or click to shoot. move your mouse cursor around the screen to aim. shoot the citroids and avoid comets to survive. (shoot the start button to start the game) how to unlock the new mode: first, get a score of 1250 or above. second, you restart the project. third, check options. i still need to make a couple tweaks to this mode, so i will be doing that.