I'm not sure what you are getting at exactly, but seems like you are trying to change the gameplay of toribash. I like Toribash the way it is with its physics and gameplay. If something should be changed about the environment or position then yes, change in gamerules, but no hurting states or whatever on what you are talking about.
If you are talking about like when you are hurt, there are sounds, I'm all for that, I don't care, but no changing the gameplay :P
I agree with the sounds but i'm not so sure about having a different face for each situation.