Cool game but could definitely use more polishing.
My main issue is with the crystal system. First its hard to tell how many crystals are active. Some more contrast or some particles when one is active would be nice. Also the mental breakdown to regain crystals is really annoying. Killing the player for charging too long really only makes the player do it in two smaller burst which slows the game down. This in addition to respawning the player with no crystals makes it so every time they die they have to stop and slowly regain crystals before continuing which really can be really frustrating.
The game has potential to be really cool it just has some issues that need to be ironed out :)