Congrats on 40 ratings!
First of all, really sick that you were able to make a whole Metroidvania in the timeframe, and stuff like exploring the environments, collecting minerals, and upgrading stuff is really satisfying. One complaint I do have is that the keyboard controls feel kinda awkward when you use the arrow keys to move, Z and X for actions, enter to confirm in dialogue, and ESC to exit menus, it kinda demands your left hand move all around the keyboard and doesn't feel super intuitive. The movement is a bit floaty, and the music can get kinda repetitive, but I still enjoyed my time with it, and with more time to polish up what's here, this would be a very solid foundation, good stuff.