Certe the concept is interesting for your kids romp, but I find that c quickly carnage, brutal griffouillage who goes on peanut. The goal is to annihilate the rival designs in most cases, so obviously this is not easy. No I do not really like the atmosphere of chaos and extermination of this book. Fun for my 4 year old boy, but I think that he did no interest to refocus and develop it. Just a défoulloir which tends to excite the well.
