US Hasbro Kreo competition

Just when I thought our Transformers competitions were over-complicated to the point of being flawed, this new competition in America is so confusing, I gave up trying to understand it.
What I did get though, was that it is just for 6-18 year olds, and doesn't require a purchase. Kids register on the kre-o website, and can "play" up to 3 times a day until they win a prize. (over a thousand Kre-o sets to win)
The way the prizes are drawn and when stumped me...

And I'd be upset about being too old to enter (if I were in America to play).