This is a tool-assisted speedrun. For more information, see http://tasvideos.org/3779M.html. TAS originally published on 2018-09-03.
Disney Adventures in the Magic Kingdom takes place in a Disneyland-esque amusement park, where Goofy has left the golden key needed to start the parade in the castle. However, six silver keys are needed to open the castle gate. Mickey wonders if you can find them scattered around the magic kingdom, the parade can't go on without them!
link_7777 collects the 6 silver keys and opens the castle gate in record time.