Never thought I would see a rhythm(?) game as a speedrun submission, interesting approach. The UI is really well done, very satisfying. Also like that there is already a wide selection of songs to choose from.
One thing I noticed when playing Rush E is that even though I'm hitting every key, how is my accuracy below 100%? Given there is no tempo, I'm just confused on how that is possible. Is there something I'm missing? Otherwise, I enjoyed playing, great job!