Rescued Doc from Kid Tannen
Traveled back in time to rescue Doc
Delivered the subpoeana to Arthur McFly
Managed to get 190-proof alcohol delivered to Emmett's
Got Doc's Notebook back from Biff
Talked Emmett into completing the Rocket Drill
Discovered the origin of the "new" DeLorean
Flawlessly mixed up a batch of Emmett's Rocket Fuel
Heard about the curious fate of Marshall Strickland
Namechecked BTTF Creators
Perfectly repeated dialog while repeating Doc's temporal experiment