The Missing Mechanical Parts

I better go see Cheng the Assistant, who should be somewhere around Toy Factory

At the Toy Factory in Ludibrium, I found Cheng the Assistant riding around on a white wooden horse. Chang was concerned about the sudden disappearance of the mechanic parts all over the factory, and wanted me to find those parts for him. I should head over to Toy Factory <Main Construction1> Part 4 with help from Cheng, where the parts are hidden. I need to gather up 10 Mechanical Parts and bring them back to Cheng.

I found the 10 missing parts in the Toy Factory and gave them back to Cheng the Assisntant. Hopefully this will help the Factory run as smoothly as it should be.