This is really cool - love the graphics and music. The sprint speed and driving music inspire a fast play style, so it would have been good to be able to kill enemies quickly as I ran past them. This could be acheived with a higher rate of fire, or the enemies having less health. It would also help to be able to change the mouse sensitivity to accomodate that. That being said, I did like the explosive barrels, and loved the verticality! It was a cool surprise when I didn't die by falling down.
Well done :)