FASERIP
FASERIP is the abbreviation used to describe the game system for the first official Marvel Supersheroes roleplaying game, as opposed the the later Marvel rpg products. "FASERIP" refers to the sevem main attributes of characters: Fighting, Agility, Strength, Endurance, Reason, Intuition, and Psyche.

FASERIP was the only one of the TSR universal color-coded chart systems that I cared for. 3rd edition Gamma World left me cold, while the Star Frontiers: Zebulon's Guide to Frontier Space and the Conan rpg both actively pissed me off. I wasn't wanting a rules revision disquised as a supplement when I purchased Zebulon's Guide. Some of the ideas were good but I didn't like the stupid color chart and even worse, you couldn't use the new guns as present without the freaking chart. And the color-chart mechanics just don't fit in with Conan. Full stop.

It was pretty darn easy to play FASERIP and making PCs and NPCs were a cinch too. Since game mechanics can't be subject to copywright protection, I think someone could publish a little free PDF encapsulating the FASERIP system. As long as the care was taken to avoid lengthy quotes, rules specific to Marvel comics were omitted, and new charts were drawn up, I think FASERIP would be legal to publish.