The Legend of Zelda: Skyward Sword.
Whenever I get a Zelda game, I always feel that I need to complete it without dying once, and if I did, completely start the game over from scratch. Everything was going absolutely well, I didn't die once, until I died on the final loving boss battle. After that, I just wasn't in the mood for it anymore, since I was going to know exactly what happens in the whole game if I start again, so I never played it again since.
I also had to re-centre the Wiimote every 1-2 minutes, so basically, the game was an absolute disappointment to me.