SUPERHERO SLUGFEST

Slugfest Gaming
Superhero Slugfest
  Design your own superhero team and pulverize your opponent.
RPG Expansion Rules
  by Michael Callahan 
Sword & Sorcery Rules
  by Michael Callahan 
Super Critter Slugfest
  Cute & Deadly Fun
Superhero Slugfest Card Combat
  Card game version.
Superhero Slugfest Revised
  by Jason Newell.