by Wolfshanze
I replaced all the green "energy cubes" with green "energy bolts"*... the bolts now match what you roll on the dice and what you pay for or earn with the cards.Not sure how much it helps with younger children, but making everything match (bolt dice, bolt cards, bolt energy tokens vs bolt dice, bolt cards, square energy tokens) might make it easier on the little ones.
You can order the bolts from Amazon (no, I have no connection with whoever sells them, I just thought it was a nice touch).
My youngest is 9yo... we play with full rules and all the cards and he has no problem with the game. I don't think this is a very complicated game, the cards are pretty self-explanatory.