Sorry if I'm being really, really thick and noobie but MAME already has the following:
hsf2 Hyper Street Fighter II: The Anniversary Edition (USA 040202) hsf2a Hyper Street Fighter II: The Anniversary Edition (Asia 040202)
If this Japanese release is also a 040202 revision then how different is it going to be to the existing versions, other than the language? Or are Japanese versions always different, even with the same revision number?