Opoona
Mario Kart Wii
Perfect Dark XBLA

The only game iv'e played this gen which I think is underrated is locoroco midnight carnival, which is the lowest rated locoroco and I think it's the best one.

I can only think of Mirror's Edge and Prince of Persia. Neither are flawless, but still brilliant. I don't know if they count though

I would to go with Mirror's Edge, the game wasn't perfect and combat could be frustrating but the parkour was insanely fun. That's why I prefered the time trial mode over the story mode. It's really fun to go through the checkpoints as fast as you can trying to figure out where a wall jump could shave a couple seconds off your time.

why?

Civilization IV

stereotypes, clichés, and xenophobia meet in this turn based strategy customized for consoles

best played when stone

YES Project Sylpheed! Awesome game, I had a lot of fun with that game. If only it had multiplayer...

Armored Core 4, first game I got 1000/1000 on, and I loved almost every second of it. Except the last few thousand seconds, some of the missions were VERY hard to SS on hard mode.

Lego Star Wars: The Complete Collection. I had a lot of fun with this game but none of my friends want to even try it =(

Cabela's African Safari. My friend gave me this game (not sure why he had it in the first place) even though he never played it. I thought I'd never play it. One day, my friends and I were bored so we decided to give it a shot and we had too much fun with it. Such a silly and awesome game.

ROCKET SLIME!!!

I know right :(

But there are no means for me to play it.

I'm just hoping The Last Story will be similar to it.

No More Heroes
Okami
Boom Blox (biggest surprise game on the Wii)

Army of Two - pure co-op fun. Needs a lot of communication with your partner.
Dark Messiah of Might & Magic - Great fantasy game in first person. Players can try different styles of gameplay. You can kill your enemies in so many ways using weapons or magic.