Cosmic Defender:
Destroy the invading aliens and save your brethern from abduction.
"A" or Space bar - Fire
"B" - Smart bomb (destroy everything on the current screen)
"D" - Hyperspace (teleports you to a random part of the map)
Shoot an abducting alien and your friend wil 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 5000 points you get to use another smart bomb.
For every 7500 points you get an extre life.