The story begins with Nobita and Shizuka sitting on the pipes in the yard they hang out at while Suneo showed off his robot. Nobita grew jealous and asked Doraemon to build him a giant robot. Coincidently, robot parts began
Fear
Pooh's Heffalump Halloween Movie
Doraemons: The Puzzling Challenge Letter of the Mysterious Thief Dorapan
Doraemon: Nobita Drifts in the Universe