From the introduction: Psi Rangers is an expansion to Lightspeed. Using these rules, the players can create and play characters who are members of the most powerful police force in the Galaxy, the Astro Police Psi Rangers. It draws heavily upon such anime as Cosmo Police Justy, Akira, Locke the Superpower, Mai the Psychic Girl, Fist of the North Star, and Dragonball Z, as well as media as diverse as Babylon 5, Star Trek, and Star Wars.