I think having to implement a button to lock your movement so it won't effect aiming (which didn't work in the air, that would've been useful) demonstrates that tying both movement and aiming to the d-pad was a bad idea. I think using both analog sticks would've worked much better.
Other than that it's a good game, it was certainly animated well but I don't see the theme being applied at all, unless it uses a very loose interpretation of "scarcity".