There are a couple to choose from. I saw the Miku Hatsune Project Diva arcade, some DDR dance style games (2 or 3) and a few screen tapping rhythm games. All in Japanese of course. *Edit* There is also Guitar Hero Arcade (English), a Japanese guitar equivalent, and a japanese drum set game!
There's about 15-18 rhythm games currently and they're all playable but don't overestimate your availabilities on some of them. The normal difficulty is about the most a novice can handle and it's kinda annoying when jumping to hard is an insane difficulty gap for most
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