Yes, you need HDD(Hard drive) for PS2 and network adaptor. You might also want to get the expansion packs, but they are not necessary. They are very expensive for the PS2 though(about $30 each). I think you might be better off getting it for the PC. Or if you don't want it for the PC this is the next best choice. But you'll probably have to spend more than 60 bucks for this.