I used to play a game called Turok when I was a kid, there was a gun called the cerebral bore and it launched a gadget into the enemies head that drilled the brain out, spraying it out the head through a hole in the back lol. It never really bothered me then or now, I think kids know that they're just playing a game. I do think kids can be easily influenced with party chat and things like that though, but it's up to the parents to take their mic away on that one.