I seriously don't know what's the hardest final boss of all time... I mean, I can post any video from any SHMUP, but still, they're not that hard either. Just memorize a good pattern against one and you'll defeat it after a few tries, just like any boss really.
I think bosses from RPGs are the worst especially if they're unbalanced. I mean, grinding just to be able to defeat one when you could easily beat all the rest before it just sucks... (FFVIII's comes to mind).
Random game thought :
Why is Bionic Commando Rearmed 2 getting so much hate? We finally get a real game and they're not even satisfied... I'm starting to hate the gaming community so f****** much...







