Its already been said but you really don't miss much with the Japanese verison save some English text. The JP verison is easier to find and a lot cheaper. Around the 40-50 dollar range for a JP copy. I paid around 120 for my U.S. copy a while back but I only did it to collect it. If you want to collect it then good luck, but if you wanted to just play it, track down a JP copy. If your just curious then don't bother it is really nothing that special (though the music isn't bad). There are definately better shooters out there that you can spend your money on. Alot of them are cheaper too.