Wow! First game I try in the jam and it's a gem! Congratulations, it's so clear and IMMEDIATELY enjoyable. I love the idea and it took me a while before I learned how to use the three weapons to the best. I'm sure there are tons of additionnal ideas you could bring to this concept. Might be worth pushing it further.
I'm not very strong so I couldn't get really far but I wondered if the games add new enemies or if there is a boss coming at some point?