The visuals are really good and overall the game feels very well polished already. I noticed the mario reference when falling to the abyss, it was nice.
The only details that I found are:
- The shooting button could be specified when needed.
- The instructions don't show the keyboard buttons (see image).

Unfortunately I'm very bad at this game, I couldn't even get to the second checkpoint lol. I definitely need to practice platformers and your game will be useful to test my skills in the future.