I played a little bit of the first game when they had it out for demo at the store but never bought it. My brother had a copy he let me borrow for DS.
The game was basically the same. Little fast mini-games they call "microgames" which test your speed, rhythm and skill.
Sadly there weren't too many microgames to play. This was considered one of the weakest games in the series. But I had fun with it at least.