Wow! This is an incredible entry! I'm stunned by the amount of content here. This was a fun challenge. That said, there are a number of pretty serious things that are currently detracting from the game:
1. Please please please allow full screen, or at least a larger window. The tiny view was pretty difficult.
2. The controller mapping is kind of weird. Right at the start, I could not figure out what button to press on my xbox controller to get out of the main menu. There doesn't appear to be any button; you have to press 'e' on the keyboard. That's fine, but it's a little hairy in-game too. The most annoying thing was that pressing the left-thumbstick on the gamepad pauses the game. When playing this game I realized how much I unintentionally press the left thumbstick. I kept pausing in the middle of the most intense sections.
3. In-game guidance is kind of lacking, especially when it comes to controls. I had to just press a bunch of buttons to figure out how to use the moth light power (which is an awesome powerup, by the way). Another example: after getting "dive" I had no idea what that meant. The player can now dive? Is that a special move? An attack? Did not occur to me that it referred to water.
4. In some places, visibility is an issue. Many times I just did not see the smasher blocks because they don't stand out very much and in some cases, are hidden off screen. Also, in some cases it wasn't clear what was background and what was solid.
A few more minor things:
1. Boss fights were pretty great though only the final boss was a real challenge (at least for me). Final boss took me a long time to figure out because I didn't know what rays caused damage and which ones did not (another visual ambiguity issue).
2. I was not a fan of the way shooting is locked into the direction you're pressing when you start shooting. I'd rather shooting change the direction with your change of direction, unless a button is held (a la Axiom Verge).
3. I also had no idea I could shoot vertically until I stumbled across it.
4. Final boss also tripped me up because I had no idea that dashing made you temporarily invincible.
That's a lot of criticism but honestly this is the most impressive game I've played so far this jam. Well done! Thanks for making it.