Really enjoyed playing this one! Probably just a skill issue but I had a lot trouble with the controls, but I did get better as the game continued and the skill curve felt manageable given the level design, nicely done!
Pro tip that might help if you also experience delayed music upon scene transitions in the browser version: In Unity, I found that looping through all the audio clips (e.g. for( i < all clips.count ) { source.clip = clips [ i ] ; source.play() } ) at the start of the first scene, it eliminates the problem. Please let me know if you also experience this when playing your game in the browser, I'm wondering if it's a browser specific issue (I'm using Opera)