The game is incredible, starting from its artstyle, sound design, game design and game feel. 

It looks really promising from this demo. :D

However, I would recommand, for the sake of this demo and the full game, some accessibility features such as game speed, bindable buttons or projectiles that auto-targets (something that can be tricky, and I feel like there's little to no room to error here). 

Anyways, great work and thanks for this demo :)