I purchased this entire set from Megabloks and gave it to my child one by one over the course of a few weeks for toddler lockdown entertainment. Note: the Catboy, Gecko, and Owlette sets can be combined to form what I call a "villian's block". This combined set can be seen on the back of the box so be aware that your child may see it and immediately want the whole set.Catboy is the favorite with my child so he was very happy playing and imagining with this set. The sticky splat (not actually sticky thank goodness) is a great feature, bringing to life the static Ninjalino blocks. My son put this set together mostly by himself (he is nearly four) but had trouble working the instruction booklet - it is different from Lego books in that it doesnt have pages but rather unfolds. This annoyance is the same for the other sets.These sets are obviously not as high quality as Duplo sets which is why I am giving this one 4 stars- Catboy's car has exposed metal axles (why?) and the pieces do not fit as snug as Duplo pieces. I do understand this is not as expensive as Duplo but I think they could've increased the price $5 and made a better product after seeing the quality of the new Batman Duplo (get it if your child likes super heroes, wonderful product).I would recommend getting this product if your younger child enjoys PJ Mask because my son did enjoy playing with it for hours but if your child also plays with Duplo alot, temper your expectations.