Your task in this online game is to squish civilians and military vehicles/personnel while deflecting projectiles at your enemies with your tail. Use LEFT and RIGHT ARROW KEYS to steer the sperm. Activate a speed boost by pressing the UP ARROW KEY or SHIFT. The boost is limited, but regenerates over time as shown by the blue meter. Press DOWN ARROW KEY or SPACEBAR to slow down and stop. Combine these controls to execute moves. By stopping and turning, you can spin quickly which is useful for deflecting objects. Have fun!