Absolutely awesome game! I loved exploring the area and was super impressed by the art. I really liked the two main bosses, they were both very fun and I managed to beat them both on my second attempt. The secret boss however... Is complete B.S. I've tried for ten minutes, and haven't landed a single hit without being hit back. Not sure what's up with that, but I absolutely cannot beat that boss. It felt like I was attacking that boss underpowered; there wasn't time to dodge most attacks and some felt ridiculous even with the foresight of what they were about to do. I've been using the charge shot (which is really useful!) but am still finding myself getting rekt. One mechanic I haven't used is the 'dash', which is triggered by X. This button is in a strange place for me, and wasn't really usable in the heat of battle, so perhaps that's what I was missing? Another thing, I still don't know how to use items, so that is probably something I'm missing? One last nitpick is that I wasn't sure what a lot of the stuff was that I was picking up, I guess money? Would be nice if some indicator came up to show how much money I'd picked up, or if a money total was shown on the main game HUD.
Anyways, this is a really cool game, awesome metroidvania vibes. I really look forward to seeing where this game goes =)
EDIT: Just figured out you can remap controls, I've persisted and got up to the second phase, which is even more ridiculous!