Why not implement "ragdoll" and blood effects?

It would be nice to see the enemies' heads (or arms and legs) explode, shooting them in the head (or wherever you want)! and nearly blocks become red-blood!

(just add some red in RGB color of block, more red means more blood!)

And flash grenade? just turn blank the screen for a short period of time if you look at when explode!

Isn't cool? :D