this is amazing! I think you could've gone even juicier with some of the interactions, but restraint is a reasonable approach too. Have to stretch to find things to suggest, so: I felt the music didn't blow me away and the "don't stop" theme didn't feel genre-transformative I guess? I did find I was constantly forgetting the gun exists and wonder what its inclusion does for the trick-based gameplay? might be interesting to play around with some heavy knockback when you fire to spin you around more, perhaps.
Just some thoughts anyway :) really impressed by how good this is!