Very fun and I really like the combination of 3d and 2d. Maybe some sort of cooldown on the weapon would be good (I held shoot and W and was practically invincible :P)
The problem with shooting was that if the fire rate was too slow you couldn't hit anything, but shooting too fast made the game easier and I wasn't able to find a middle ground. Maybe if shooting was in bursts it could work. I will see if I could make it better after the jam.