"This is a cool Lego set, and my son loves it. But when we initially opened the box and started putting it together... We bought it for the TREX. Unfortunately my son was SO UPSET, because the legs do not fit in the holes properly and it cant even stand up!! It seems like they completely flipped around the insert for the legs and the arms because the arms fit in where the legs go, and the legs fit in where the arms go. For this reason alone, I would not recommend this one."