This is just, great.
Multiple things, love the artstyle, if you come back to it, please reuse it. Tank AI was fun as was taking their guns. I can only wish you do a Ms.Pac-Man to this Pac-Man and add more levels in the future!
EDIT: More feedback, ah, I kind of wish the guns had less bullets and more damage. That way you didn't have to unload multiple clips. Maybe a way to see what damage you did too? Grenades in this regard and takedowns are way better.
Lean button! That way you don't get surprised too soon and get bodied at the last second.