I don't know any killing/breaking friendship games, and sorry for off topic post, but i myself remember that whenever i would play King of Fighters games with my older sister on PC and whenever i would win, (actually, scratch that, i always win against her but understandable since she doesn't play games a lot) she would slam my head with keyboard in frustration of not winning.

But it doesn't hurt. I am ok, lol.

Sorry if my post doesn't count by the way.