Space Defender is an arcade-style game in wich you are stranded in the middle of space, while being barraged by a fleet of galactic pirates. You are armed with a laser cannon, and that is all. Out of fuel and out of ideas, the only thing you can do is fight! Shoot down the enemy ships to avoid the crazy kamikazes!

But there's a twist! Collect special bonuses! They will either save your life...
... or send you to your doom!