Where the hell was this when I was a kid? Why did no one tell me about this hardcore spin-off of chalk gameplay?

Back in my day all we did was doodle and play hopscotch.

But in all seriousness, the special effects are phenomenal. The creator, whose work we've featured before, got some great detail in there. If you freeze the frames, you can see the pistol barrel firing back with each shot. So. Neat.