Goldeneye 007 (Wii)
Most of the game was beat on Agent (I think that's "normal" difficulty, right?). Became extremely frustrated with the last level and switched to Operative ("easy" I guess...). The last level seemed to take the difficulty curve, that had been gradually building most of the game, and throw it out the window.
Not sure how I feel about going back and working on higher difficulties and time trials. Tis a shame too, because up 'til the final stage, Goldeneye 007 (Wii)
was really up there for one of my favorites of the year.