I've tried the game, if you're at the start of development the game is fine but there are some issues that can be solved easily
- it's a small thing but i'd stick with just 1 font for the game HUD
- when you exchange life for energy I think that (if explained earlier) I'd remove the confermation screen, similar to Bloodborne exchange of life for bullets
- instead of jumps removing energy I think that the slam should remove it so that the player is not punished for doing a simple movement option
- in the intro screen you spelled continue as cnctinue
- instead of a flat image the main menu could be more appealing with the gameworld as a background for the title and buttons
the game also has other issues but I think these should be easy to solve and should make the game better
in any case keep going! the only way to improve is to keep creating stuff