Hyperbeat is one of the best rhythm games I've played, with one of the most confusing UIs which at times makes me feel sick

I remember the first time I looked into a kaleidoscope as a kid, it was so strange and disarming to me that I threw up a little bit, and then it was confiscated by my parents. Sad, but probably for the best. It's a memory that I pushed so far down I'd almost entirely forgotten about it, until I played Hyperbeat.

It lives up to the claim that it's "A rhythm game like no other". Instead of being set in a static environment, the notes fly towards you, each indicating whether you need to slash, ride, or avoid them.