Call of Duty: Black Ops 2 (finally fell for the Hype)
Spore (expected so much more, still kinda fun but a letdown saw this mentioned earlier in the thread - reminded me)
Guitar Hero 4/5 (choked to death)
Zack & Wiki (supposed to be so good, maybe I just didn't get it)
No More Heros (same as Zack & Wiki, but for obviously different reasons)
The Legend of Zelda Phantom Hourglass (why did I have to repeat the same dungeon like 10 times?!?!)
on the flip side there are several games I've gotten hyped about that turned out to be awesome or that I didn't think would be that good and turned out to be, off the top of my head:
Xenoblade Chronicles
XCom: Enemy Within
Assassin's Creed III
Fire Emblem: Awakening
Pokemon Conquest
Pokemon White
Super Smash Bros Brawl
Monster Hunter Tri
Wii Fit (don't judge me I loved it)
Systems Currently Playing: WiiU, PS3, 3DS
Also Have: Atari 2600, NES, SNES, PS1, N64, PS2, Wii, GB, GBC, GBA, DSLite, DSi, Android (RazorMax), iPhone (4), iPad (2)
