Phantasy Star III on the Genesis. The whole "play through generations"/"multiple endings" hook is cool and I can deal with the systems and everything about it, and I think it's an okay game. But the battle music is a deal-breaker. It's interesting because the music changes as the battle goes on, depending on your status in the fight, but any of the different battle tunes will give me a headache almost instantly. Haven't had it happen with any other game, and it's a bummer because I'd like to eventually play it to see every ending rather than the one or two that I've gotten on my own.