Digimon World 3! I have gotten so close to beating it once, but ran into a game breaking bug. i still have the CD so i can play it anytime, but man. i really really need to beat it!
Resident Evil Remake and Resident Evil 0. I get so far in, but i take so long on them that I never get to the last area. I beat all the other RE games, but these remain unbeaten!