From last E3: Capcom says Japan doesn't matter anymore

[A Black Falcon]

Yeah, very, very impressive numbers for that game... not exactly something that denies what the guy in the interview is saying, though.

every single developer out there no longer can afford to just look at one territory when making a game. Games are on an international level. If you look at the 360 from an international perspective, it still has a lot of potential. So the games that we created are hopefully applicable to not just the Japanese market but they're hopefully something that Japanese gamers would want to purchase as well. We don't see it as such a big problem, and so long as we can come up with ideas that are internationally viable, then there's no reason not to develop more Xbox 360 games.

New Super Mario Brothers is a game that fits that description quite well, I'd certainly say...