I have purchased may ROKR products in the past, including the complete ROKR Metal bug series. Generally they are good products. This one was unfortunately a disappointment - there is a small bag that contains some plastic elements that go with the cuckoo bird and the a few other parts - I am pretty sure this is a manufacturing issue but the plastic pieces are all deformed - almost as if the melting process malfunctioned. All other pieces of wood and electronic elements seem to be ok... but it is just unfortunate that I cannot build this one. There are many competitors to ROKR so I may consider those :(