23. Gatling Gun
Final Fantasy VII
If Super Mario RPG's Geno had guns for arms before it was cool, then FF7's Barret Wallace made it cool. When the dude lost his right forearm trying to save his home, he didn't get all whiny and depressed. He just melded a gatling gun to the flesh of his elbow. That's totally what we would do, too. Upgrades for Barret's gun-arm include a spiked cannon ball, a drill, a rocket-powered boxing glove, and "atomic scissors," whatever the hell those are.