I'm thrilled to have people enjoy the games and don't have a list of rules.

We have lots of little ones who like to play and I generally just let them go at it. These are industrial devices and I'm not worried about them breaking anything. I can generally fix it anyway. Once they are old enough, I start discouraging them from chimping the flips, but not because I'm worried about damage.

I have PBL drink holders attached to each of the games to discourage people from trying to find a creative home for their drink.