That is really cool!

I really enjoyed the boss battle, although it got a bit frustrating at times. When I figured out the strategy to farm overload in the star room, shoot primary attack for the first half and then spam secondary attack for the second half, it was much easier.

My main pain point is balancing. Mainly: low amount of i-frames, enemy being able to shoot you through walls and off-screen and enemies shooting at you as soon as you enter the room. But that could be solved with some minor tweaking, all the important stuff was spot-on!

BTW, was Risk Of Rain (the first one) an inspiration? The premise and graphics are similar. And the checkpoint/health restore objects remind me of Remote Caffeinator from Risk Of Rain 2

Dude, this is sweet! It reminds me a lot of Cave Story, really cool in the same way!

This was a pretty challenging action platformer, although I'm one of those wasd movement guys, so I struggled until finally plugged in a controller and everything immediately clicked. One small change I would suggest to alter some of the difficulty is your iframe situation. I think giving the player more invulnerability time between getting hit would be nice. Right now if something lands on me I take a million damage in 2 seconds. Definitely a fun game though and loved the music and game progression. 

Very cool game! I liked the art, the sounds, the gameplay mechanics and the level design :)

I just think the shooting mechanic would be cool to cross the platforms that the player can cross, it's common to be aligned vertically with enemies but not be able to shoot them.