I usually tend to forget bad games, but one that definitely sticks out would probably be Final Fantasy XII: the game basically played itself. Made for a really boring experience overall, and it doesn't help that that epic story was told about as flat as could be. I could see what they were trying to do, but it was one of the single most boring video game experiences of my life. It also made the same mistake Xenosaga made: they make it so it's fun to sneak by enemies without fighting them, and then punish you with insane increases in enemy levels that you have to grind for.