Zidane: If you mean, you're using a Gameshark, yeah, Sony and Square have managed to crack down on cheaters with viruses. I heard rumor the PS2 Gameshark is bugged because one of the developers was a Sony representative(brillant idea there Gameshark[/sarcasm]) six months after you first use the thing if you use it often, the PS2 barely reads PS2 discs, at least, that's what I've heard.
Why would Sony or Square care if people use Gameshark?