It's not bad, just not very 'finished' Lots of bugs with the basics like shooting and enemy AI, and nothing really feels satisfying or juicy. Random red boxes seem to appear occasionally - I'm guessing these are supposed to be health bars?
The basic movement feels smooth, but the shooting dice doesn't feel at all good. Sometimes the shot just doesn't go, sometimes it goes a little way then vanishes, and if it does actually hit something it doesn't seem to have much effect. I know the second shot removes it from the arena, but it just vanishes.
Clearly there's a lot of compromise due to the time constraints of a jam. You've done well just to get something out at all!