Nice game! I really liked the aesthetics. As mentioned by some of the other comments, the tank movement was very smooth and easy to use.
Until I read the instructions I didn't realize I had to pickup bullets and I was wondering why the tank can't shoot lol.
Some feedback below:
1. The Giblets need some sort of effect (such as spinning, particles, etc) to make them stand out from the level. It was hard to distinguish these from other elements.
2. It was hard to distinguish which UI elements were interactable and which ones were just text, other than the obvious ones such as Restart, Quit, etc.
3. If you're not in full screen mode, the score text is placed over the Restart and Quit buttons and I'm unable to click on them.
If you do continue developing this game, a cool idea to implement would be a roguelike dungeon crawler where you have entrances on each side of the room which takes you to new areas with new enemies to fight.
Huge congrats on your submission and I hope my feedback helps!!
Kpaws