The art style is really intriguing! I think this game has a lot of promise if you continue to work on it. My main feedback would be that I love the Undertale-inspired combat system, but it was pretty easy. In all the combat encounters, I was able to just stand still and spam the spacebar, and the enemy would die before I would. To address this, you could maybe add some kind of cooldown to the shooting, or when the player is hit, they can't fire for a couple of seconds or whatever. Great game though!