Metroid Prime 2
Got tired of losing against Emperor Ing. I got to the third and hopefully last part of the battle where he turns into a huge Ing warrior. After playing through both Metroid Prime and its sequel I'm still not comfortable with the controls. He's too fast for me, my aiming can't keep up. Great game though, better than the first in my opinion. Anyway, I viewed the ending on YouTube and shelved the game.
*edit*
OK, so maybe I haven't completely given up on the game, but I doubt I'll pick it up again anytime soon.
*edit*
Ok, so I picked it up anytime soon... and finished it. Sue me