Gonna start off with some issues i found: Sometimes when i shoot enemies (or fight them), their health bar don't show up, so i have no way of knowing their health (although idk if this is intentional, but imo it makes it more "chaos" sometimes). Also, the game seems "slightly" too easy in my opinion, even in some other difficulties, and because of that I don't really see the purpose to use the items and potions except for the boss fight.
Still, the graphics and artstyle is really nice, and the music is also amazing. The game is fun and polished. It just needs more enemies, bosses, maybe a story (like what happens after the boss gets killed or whatever).
Also apparently this game was made in scratch? If that's the case, great job! And yes, scratch isn't really a real game development software like unity or unreal, but the fact is that you managed to use it properly and actually made a game that is better than many unity games. So again, genuinely a great job!