Is there a PlayStation 2 Warrior Cats game?
No there isn't a warrior cats game on playstation 2 or anyother console, they should make one though and a movie
Actually all PlaySation 3's can play PlayStation 2 games on them no matter what the gb. I have a 40gb PlayStation 3 and I play PlayStation 3 games on it all the time. But you have to go to the PlayStation store and download the free PlayStation 2 content to play pPlayStation 2 games on a PlayStation 3. Basically, you do the same thing you have do, to play a PlayStation 3 game.
It is impossible to use PlayStation Network on a PlayStation 2, as only the PlayStation 3 can access it, and has the capabilities to do so. PlayStation Network is used to access the online store, as well as play games online. Although you can play games online with the PlayStation 2, the game servers are hosted by the separate developers.