The Adventures of Rad Gravity is a game for the NES published by Activision. The game was a standard platformer which took place among multiple planets.
The story: In the far future, humans colonized many planets and created a form of biotechnology, which were sentient beings called Compuminds, which could communicate rapidly from world to world. The game's villian had shut down all the Compuminds and hid them. Eventually one of the Compuminds, named Kakos, was found. Rad Gravity is the name of the game's hero. Together, Rad and Kakos must find the eight missing Compuminds, each on a different planet.