This game is hilarious! I've always been a big fan of ragdoll physics and dynamic movement for bones.
Nice interpretation of the limitation. And you can even argue that the theme is fit since the character fall into "the empty".
Nice polishing, too. The small details like enemies turning red before attacking or that little scream when someone falls down really make the mood!
Only bad thing i noticed is: Its extremely hard to aim with the gun. That's the funny thing about ragolls, i know. But then the ammo limitation is set too low. (but this might just be a personal preference)
All in all: Really great job