I think this could work really well as like a proof of concept. The air dash mechanic and air dash combos are really interesting, and I suppose if you only had more time you could have really fleshed out the level design around the idea of air dashing and breakable terrain like you almost did in the brief section before the boss fight. As it currently stands it's impressive work for a solo submitter, so I commend you on that. Even if not as a fan game, I think at the very least this concept is worth revisiting and developed into something more complete.