Destroy the invading aliens and save your brethren from abduction. Press 'A' or space bar to fire, 'S' to use a smart bomb and 'D' for hyperspace. Shoot an abducting alien and your friend will fall to their death if dropped from too high. Save your friend by catching them mid-air and landing them safely for maximum points. For every 5,000 points you get to use another smart bomb. For every 7,500 points you get an extra life.