Gaiares

It's the year 300x. The Earth has been ravaged by careless humans, leaving an uninhabitable, polluted wasteland. The space terrorists, the Gulfer, plan to harvest the pollution to make some sort of garbage weapon. The good guys, the Leezaluth, aren't happy about that, so they decide that they have to blow up the Earth before Gulfer gets at it. They give Earth an ultimatum: destroy Gulfer or Leezaluth destroys Earth. To help them out, Leezaluth gives Earth's last hero, Dan, a special weapon: the TOZ system.

"Why don't the Leezaluth just stop Gulfer themselves?" Dan wonders, but he will soon find out the truth behind all this.