Very nice game. I really like the art and the music. The sounds are very pleasant to hear, too. Overall, it feels like an isometric-view 3D-rendition of Enter the Gungeon, and it delivers.
The gameplay has a few slightly weak points, like not telling you any of the controls (which would be fine if not for the fact that dashing is pretty much required in the very first room >.>). I really like the idea of picking up the bullets you shot, it forces ammo management that would otherwise be either annoying or game-breaking.
The boss fight was good, albeit rather easy. Also, the boss is entirely cheesable: if you wait a little and manage to get behind it, you can spam and clear it within ~10 seconds <.<
Overall, amazing submission, really goes to show your team worked hard on it!