I had a lot of fun playing this. It's quite challenging but the dash helps getting out of a difficult situation.
I really like the design choice that enemies don't immediately die on 4, so that if you end up making a mistake and shooting them again they get back to the fight. That made it much more interesting that just spamming keys.
I think it needs some tuning in terms of enemy speed but the concept is good and it's a 48h jam after all.
Good job!