Not sure if this has been posted, but latly i have been trying kick or punch someone, when i do that and miss, it goes through my leg or arm.

Open toribash then press on tutorial , i think that will help a little , if u played more and more u will get better , just remeber (no pain...no game) D: .

I think he's trying to say the collision isn't registering & his leg/arm is passing through the other person. :s

Can you post a screen shot of it happening?