Palladium Systems
Unlike a lot of tabletop gamers, I did not start in the hobby with D&D.
While I owned a copy of the old D&D box set, my friends and I began in RPGs with Palladium Books TMNT and other Strangeness.
We also spent a lot of time with their fantasy system, Beyond the Supernatural and other books.
But the majority of our time was spent with Heroes Unlimited.
We were already comic book geeks, and were familiar with the mechanics of TMNT, so it was a natural fit.
I have recently began to set up a new campaign for our current gaming group, and will post scenario and character info as I go.