Buy Pop'n Music Controller 2 (PS2 & PS) - Order Now!
You'd need to buy that and a playstation - pc adapter. Alternatively, you can buy an ASC if you're willing to pay a large sum of money for one. Check these threads for more info:
http://www.bemanistyle.com/forum/f9/...vailable-7510/ http://www.bemanistyle.com/forum/f9/...-1st-post-466/