Hi, our kids have been collecting Lego for quite a while now. Especially the Ninjago theme. It has a funny backstory, had a cartoon on US television (you can find it on youtube), it has the usual Lego sets but also a game attahed to it with the normal Lego minifigures. It is called Spinjitzu. You place your minifigure on a spinner,let it spin and hope to knock of your opponents spinner to win. With cards you can do special things. But you need enough points to play a card. As all ninja's and skeletons (yes that is the opponent) have their own individual stats based on ice, fire, earth and lightning. Sounds simple. It is, my 4 year old can play it with ease. And that's the fun! A while ago they decided they wanted the flagship of the 2nd release wave, the fire temple. And after carefully collecting money, their weekly 'wage' and more (grandpa's) they bought the set yesterday. And of course they build it. I only assisted when needed. But my daughter build the dragon on her own aside of 2 connections. And our son build the main base part of the temple and both finished it up to the roof. It was a great build with lots of bricks. I am glad Lego has learned from their almost bankrupt issue late ninetees early 2000's. Their bricks went to large and boring. But they are now back in classic mode to be honest. Which is cool. And after they build I ofcourse had to play along. :) whooo-haaa!