Hey! I was one of the playtesters. Good to see where it is now - the arrow made a huge difference for me! Despite the high difficulty it felt fair and balanced for the most part, with the only exception being maybe level 11 which almost made me stop playing.
Something that frustrated me was that sometimes I would run out of dash right before I hit a dash circle, which would kill me before I had enough time to react. Could be skill issue though.
This game probably took me over a hundred attempts total, with level 11 alone responsible for a good portion of that. Very challenging for me but I managed to clear it for the metagame!