Tank Control Shooter Prototype

This is not really a game so much as a 10 min prototype with a start and end. It's more to test the control scheme before I attempt to make anything actually enjoyable or polished. Feedback appreciated, but bear in mind I'm thinking mostly in terms of  control aspects than like new mechanics or balancing stuff. The levels and enemies are just an excuse to test them.

I would call this a player movement relative, shooting camera relative control scheme. This is why I should not be responsible for naming patents.  You could easily imagine this for a survival horror type game but I didn't really have time to make it more survival based (limited ammo etc).