Very fun game, the visuals are amazing! Feels very smooth and responsive overall. Also amazing that you managed to include 4 different enemy types and made it pretty clear what their purpose/difference is without explanation!
My only critiques I have would be:
1. Missing a sound option for SFX.
2. The HP seems to regenerate pretty fast. I think it's good for now, so people can enjoy playing through it without the risk of making the game too hard though!
3. Slightly bigger scope critique: Right now the 2 weapons don't feel much different than having just 1 weapon. It might be cooler to give the player an incentive to only shoot 1 weapon at a time instead of just using both. Maybe using both has more spread or the 2 weapons have different uses.