*Electroplankton
Excellent game. However, its one of those games for short-lived self-amusement, or group fun. Its not for everyone. There's no story, adventure, or real point or scoring in the game. Its just one of those games to do while you're bored, or want to make some cool sounds. The best I can describe it would be your own mini music mixing studio.
Unfortunately it will only be orderable via Nintendo World or Nintendo.com.
Personally, I'm gonna grab me a copy (I sold my imported copy to a friend and was intending to get another), but I don't suggest it for everyone.