Beating the final boss in Jet Set Radio Future is one I vividly remember for some reason. Not necessarily because the boss was insanely hard but you needed to skate up to the stage where he was and that in itself was one of the hardest skate challenges in the game, then you had to fight the boss and struggle with the lock-on cam at the same time, and when you ran out of paint you needed to fall to the bottom to pick up more and skate back up.
When I beat that shyt finally I hit the
followed by
because now I had beaten that great ass game.