Once again, Earth faces certain annihilation, this time from an unnamed alien enemy who's wrapped the planet in a Restrictor Shield that's 99 layers deep. As a beamrider, your job is to get rid of that shield so you can get the girl and finish your homework before dinner.
Gameplay: Each sector is swarming with alien ships, and you'll have to destroy 15 of them before you attack a Sentinel ship and advance to the next sector. Your beamrider is equipped with unlimited short-range laser lariats, which are good for shooting alien ships, but can be blocked by craft that are helpfully called "blockers." You also have laser torpedoes that will destroy anything. However, you only have three torpedoes per sector, and you need at least one of them to destroy the Sentinel, so don't get all "I'm going to just shoot off my torpedoes right away because I can," or you'll be totally screwed. Oh, and Earth's last chance of survival will be lost as well. But, you know, as long as you had fun shooting off your torpedoes, we're happy to die down here under the Restrictor Shield, because it's all about you.