Really, Xray of what the bullet does?
This is one of the rare times I'll side with "It isn't necessary" for a game.
As a training mechanism for what medics have to treat? Perhaps (if it was accurate).
Still, not something I'd prefer to be made available to both young and impressionable minds.
It's a video game. If you can't tell the difference between the two, I think your kids have more problems than seeing some fake skeleton get shot. Hell you'd see more on the news.