@Demonseed: Quinpl has another great swearing moment. After finishing level 100, you lay back to watch the great enddemo, but instead you "%$@# start again in level 1 and you have to play the whole "%$@# game once again but with "%$@# hidden exits.
Thexder has one of the best GAME OVER tunes I´ve ever heard in any game. Penguin Adventure too. But as Evulopah said, Konami Game Over tunes are quite good.