1. SEGASS (Ha! Get it?....) revolutionized online gaming on a console (Oh wait! It didn't really exist before SEGASS...did it?) with the wonderful RPG title Phantasy Star Online...which has now been ported (with revisions) to the Gamecube and X-box.
"Hey dude, can we play PSO on your SEGASS?"
"Why did you call it a SEGASS, fag?"