Can u use a usb ethernet for ps2 for all games or only THPS3?

[supesman]

I read in an article that you can use a usb ethernet card to play THPS online, but would this work with all the games or only this one because it came out before the adapter came out from sony?

 

[Rallispec]

i was under the impression that this worked for all games with online multiplayer support.