The Fart Rocket is one of Doraemon's gadgets that was mentioned in the manga chapter Doraemon's Feeling Down, and its anime adaptations I Hate Doraemon!? and Goodbye, Nobita! Doraemon, Goes Back To The Future, but never appeared. Seeing Nobita lagging behind at the track, Doraemon intends to use it to make Nobita go faster, but after Dorami reminds him that he's been worn down by his issues with Nobita, he decides not to. As the name suggests, the gadget could be powered by farts to make a person go faster.