Well that is if you haven't played Fire Electric Pen released by Hudson Soft for the Nintendo64 back in 1997. In FEP you had to guide a stick, seen from an angle which made it look like a ball, through a stage of strange and near impossible curves. FEP was far too hard and the game luckly only managed to be released in Japan.

Kuru on the other hand is much more playable eventhough it uses the same concept, but while FEP had to rotating stick, just the ball while had to be guided through the impossible stages, and required more hand coordination than brain, and once the ball hit one of the sides you were "dead". Kuru's rotating stick make things a bit more complicated as you have to think twice in some areas and not just go ahead with full speed.

Kuru Kuru Kururin has a small story included, some kids gets lots in different worlds and you're asked to go find them. You're not too happy about leaving the world you're currently in, atleast not in a flying rotating stick, who would?, but a big green "mommy" duck convinces you to go on the journey.

Graphics and sound aren't anything special, the tunes does get a bit annoying when you're a bit into the game, but atleast we have a volume switch :) The playability is not as great as Tetris, since a stage in Tetris never is the same, it is in this game, but a great puzzle with a lot of gaming hours, but why no a US release?