For those who prefer a truly handheld experience without the need for a constant PC connection:
Currently, there is no official standalone "Android" app in the Play Store, but you can play it portably using these methods: Steam Deck / Handheld PCs project arrhythmia android portable
For users with NVIDIA GPUs, this offers a lower-latency experience, which is crucial for a game this fast. For those who prefer a truly handheld experience