Golden Heroes
Golden Heroes is a superhero role-playing game that was originally written and published on an amateur basis in 1982. Games Workshop then published a more complete version in 1984.
It was written by Simon Burley and Peter Haines and was illustrated by a whole group of artists who were working for 2000 AD at the time.
Published in a box the rules books features fake bar codes and comics code approval badges.
The character generation system is legendary with players rolling completely random characters. A character can only keep his full set of powers if he can justify them all in a plausible origins story.
The system really strives to recreate comics, with the actions occurring in "frames" and a lot of classic comics assumptions being written into the rules.
The game is now known as Squadron UK and is available for free (minus the original artwork).