This was a fun challenge I did with my son. He is 10 years old and could do it on his own. The only reason I give 4 stars is because 1 part was missing (from the wagons) and some of the parts didn't match the colors on the instructions. The different colored elements didn't pose a visual problem, but when you're looking for two black elements and there's only one green left, it's a bit confusing. But we had fun and it turned out nice. My video didn't include the music but the audio worked fine.
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