Unfortunately my completely genuine ( ) PS2 version freezes, I need to get hold of a different, also completely genuine release of it but I just might end up getting the PSVita version, simply because y'know, you can actually touch the Katamari this time around.
I own the US first one and I couldn't wait to play the second one so I actually imported the Japanese version... It's honestly the only import I have ever done. I do own some other import games but those I bought at thrift stores.