Great game! Sadly missed it during the jam.
I think one just needs more time to learn the controls. Maybe there should have been a longer training area where you jump, dash and attack boxes more to muscle memory that more. Also at least for me the hand placement is quite uncomfortable so close together. I would prefer something like attack = left mouse button, dash = right mouse button or shift, jump = space. That would be similar to Genshin which is like the only game I play regularly nowadays...
Also I had to look at the visual heart rhythm indicator at the bottom the whole time and could only follow the screen action out of the corner of my eyes during combat. Maybe that's just me being bad at rhythm games or the music really didn't help? Maybe a clearer metronome option for less musical people like me? Just as with 1-beat pacman of this jam: would be better if more of the screen has a visual indicator like a bloom/outline or shake/pulse and not just a binary on-off one but with an anticipation of the beat like 0, 0.5, 1, 0.5, 0 ... Or a smooth sine wave style clamped to 0.