Well i was browsing gamestop's online store and they list that if you pre order gradius v you get a special limited edition dvd, looking at the features of the dvd it is the same exact one that was released in japan. So if you want it badly it's best to pre-order before the upcoming release(sept.14).
Heck, I'd be up in the Heavens if the game gets released here at all :smt033 Let's hope it'll be an instant budget release just like Hyper Street Fighter II and R-Type Final (well it hit shelves here for 40e instead of the usual 60-70)