That was absolutely outstanding.
The little details you added were simply genius. The movements of the characters were really fluid too.
The last 7-9 minutes were heavily Mortal Kombat-inspired. I have no objections to it though.
The music choices were fitting. As well as the sound effects.
The artstyle was clever. The 3D effects on some objects (rotating car, crane) were a great addition. It added more depth into the world.
I can really say that this is probably my favorite animation of this year so far. Amazing job.
PS.: How long did it take you to complete this?