Absolutely beautiful level, I would love to walk around the scene to take in the atmosphere you have created. The UI on the bullet itself looks really nice too. Really well done!
That being said, the bullet controls are really floaty and confusing paired with the screen rotations. The bullet direction isn't always consistent and tends to fly off-center after a rotation. Restarting at the beginning of the level compounds the frustration.
I was really confused by the main menu and unfinished UI because it jarringly contrasts with how good the thumbnail and level looks. I assume the stock UI elements were just due to a time constraint issue.