I DM D&D for my family and friends, but my younger kids and their friends want to play, too, and it is just over their heads. Hero Kids is simplified enough where the kids can grasp the concept, yet versitile enough that they can bring their own flair to the premade characters, or create their own custom characters. The system is well thought out and balanced fairly. I like how the hit points are simplifed and are "knocked out" instead of killed (Though I have some kids with huge imaginations that want the deaths to be cartoon bloody. lol).
I bought the completel package with extra heros, bad guys, and adventures. They're all awesome. I absolutely love that every hero and mob comes with a paper mini, too, that can be colored in for personalization. :)
[5 of 5 Stars!]