It does feel a just a bit unforgiving, particularly at the start of the second level where it's hard not to immediately aggro and get swamped by multiple fast-moving enemies. Nice presentation though! Lots of weapon variety and solid sound and enemy design. It's very impressive this was made in 48 hours and you should definitely keep working on it! I'd love to see more of a gradual ramp up in difficulty if you expand this into a full game. Cheers!
Rate our game too, if you like! https://itch.io/jam/gmtk-2020/rate/696649