A really fun game this one. As others have said, the menu was really cool, and you'd clearly put time and effort into your little animations, which made the game feel really polished. The audio was spot on too. I had a few little glitches where the player would spawn outside the door to get into an area so I couldn't shoot it, and I picked up a gun upgrade that meant I couldn't shoot at all for a minute or so.
Good job!