Very interesting game, reminds me of old flash games I used to play.
The art style is very nice and I like it a lot.
The music seems a bit familiar and I prefer original soundtracks, but that's just a personal thing.
The controls are a bit clunky in terms of movement, it doesn't really feel that great to jump through the air or move around.
The controls for combat on the other hand are quite good, specifically the sword since the sprite moves with it.
When it comes to the guns, they feel a bit underwhelming and also look a bit odd just floating on the sprite, I think the sword combat is much nicer.
My only recommendation is maybe drop the guns and just add cooler swords or something along those lines if you were to continue this project.
Anyways, great work and I hope to see more in the future!