My favourite is when you first meet an Alien in Area 51. That was a hard moment and a very good boss to kill. Just loved it when the sheild exploded and the alien dies Arbiter
legend of zelda: majoras mask. It may not be the toughfest one but I played when I was ten and I ahvent found a harder one.
Abbadon from Guild Wars:Nightfall, 'cause face it, what other boss can kill your entire parter with his insane dance moves?^_^ Also, I love the Holy Vigoor Emperor in Ninja Gaiden. Floating around on that rock is propbably the most fun I had in the entire game.
I'm gonna have to go with Ganondorf/Gannon.. I haven't played a game that has even come close to how good Ocarina of Time was.
I don't see what was so hard about Ninja Gaiden..The only difficult part was the level with the ghost fish(chapter 16 I think). :blink: