Has anyone ever played Rhythm Tengoku. It is a (obviously) Rhythm game that was created by the people who made WarioWare.
It started out on GBA, and a sequel is being made on DS.
The GBA game never came to the US, but the DS game is under the name of Rhythm Heaven.
They have you start out on specified courses, then at the end of a line you get a remix stage of what you have done so far.
I've been playing the GBA game, and I think it is really fun, some of the stages are a bit annoying at first, but you get better with practice like any game.
Here is a link for anyone who hasn't seen it before.
YouTube - Rhythm Tengoku Remix 4