You could always make your kids level your characters....
Hehe, tried that and it doesn't work well.
Me : Press the number 1 on the keyboard sweety.
My 3yo : Ok.
Me : Anything?
My 3yo : Red words on the screen daddy.
Me : Try again sweety.
My 3yo : The same thing daddy.
Me : Press it again, it might do something soon..
.... 5 minutes pass by....
My 3yo : Daddy this is really boring.
Me : Try just once more..
My 3yo : I got gold words this time.
Me : Yay, you got a gold ore for me!!
My 3yo : Daddy this is really boring...