Sly Cooper and the Thievius Raccoonus is one of my favorite games of all time. Sly 2 takes everything from the first game and makes it better.

The stealth is just as fluid, but you have more abilities. You can choose between the characters (although you are shoehorned into using specific characters for each mission). I actually like the restriction though, because it forced me to use the other characters when I otherwise wouldn't have, and Bently and Murray are fun to play too.

I love the soundtrack to this game. The music that plays in the first hub (The Midnight Chateaux, I believe) is on loop in my brain. I just love it so much.