Monster Strike - a mobile phone smash in Japan with daily revenues of over $4 million - is shaping up to be something special on 3DS, too.

The game - which was co-created by former Capcom legend Yoshiki Okamoto - has shipped over a million copies in four days in Japan.

Like fellow Japanese smartphone hit Puzzle & Dragons, this physics-based role-playing title has been substantially beefed up for its 3DS release, with a more robust storyline and expanded gameplay. Also, the in-app purchases which have made the mobile version so irksome for many players are absent, too.

Are you interested in playing Monster Strike 3DS, should a western release happen? Let us know by posting a comment. In the meantime, we'd just like to say: Very asobemasu!

[via mixi.co.jp, twitter.com]