Wow. All I have to say. Wow - what a GREAT game.
OK, let's start off...
You get 3 remastered PS2 games here for the price of 1 full-price PS3 game and over 45 hours of gameplay.
Sly Cooper is a raccoon thief and is in a gang with his friends Murray, the strong pink hippo and Bentley, the green brainy turtle.
Sly Cooper and the Thievious Raccoonus (Sly 1):
Mission: Recover Thievious Raccoonus from the Fiendish Five, defeat Clockwerk
Pros: Great gameplay, mediocre graphics (quite understandable as this was a game released in 2000-2001, so this won't factor into the cons) which have been improved on from the PS2 version quite heavily. Lots of replay value. Clue bottle system that grants you access to a new move every level and one step closer to 100%. Variety of boss battles.
Cons: The music can be off-sync sometimes and it makes the 3rd level boss (Mz.Ruby) quite frustrating. Frustrating time challenges. Camera issues happen once in a while. Missions can get repetitive.
Voice acting is so-so, depending on who you look at. In my opinion Carmelita's voice in this game is pretty bad, while Sly's is quite near perfect.
Sly 2: Band of Thieves
Mission: Retrieve Clockwerk parts from Klaww Gang
Pros: Improved gameplay and graphics. Longest storyline in all 3 games. Time challenges are no longer an issue. Great replay value. Big variety of missions - almost every mission in the game is different. You can play as all 3 characters - Sly, Bentley and Murray - each have their own missions you must complete and they are also playable in free-roam. All characters require their own strategies - Sly needs the stealthy approach, Murray can just plow through the levels and Bentley needs to stay at a distance. Improved VA from last game.
Cons: Camera issues still exist.
Sly 3: Honour Among Thieves:
Mission: Gain access to the Cooper Vault and defeat Dr. M
Pros: No more camera issues. Again, great replay value. Time challenges are back, but they are not as frustrating as in Sly 1. New disguise system which can get boring, but adds more variety. Improved graphics. An even bigger variety of missions. Bentley's new wheelchair and Murray's Dreamtime training give them a whole new lot of abilities.
Cons: No clue bottles.
Overall, this game is great. You get 3 HD remastered, 3D, Move-supporting games + minigames (albeit the minigames are absolute garbage) for the price of 1.
So please do get this game.