Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
A Bicycle Built for Two (Gold)	Rescued Doc from Kid Tannen.
A Plausible Explanation (Bronze)	Discovered the origin of the 'new' DeLorean.
Back in Time (Silver)	Traveled back in time to rescue Doc.
Deja Marty (Bronze)	Perfectly repeated dialog while repeating Doc's temporal experiment.
Doc's Legacy (Bronze)	Got Doc's Notebook back from Biff.
Fate in flux (Bronze)	Heard about the curious fate of Marshall Strickland.
Fuelmaster (Bronze)	Flawlessly mixed up a batch of Emmett's Rocket Fuel.
Grandpa Got Served (Silver)	Delivered the subpoeana to Arthur McFly.
Hello, Young Friend (Bronze)	Talked Emmett into completing the Rocket Drill.
Hi Bob! (Bronze)	Namechecked BTTF Creators.
Jailbreak! (Silver)	Acquired Emmett's Rocket Drill.
Junior Bootlegger Badge (Silver)	Managed to get 190-proof alcohol delivered to Emmett's.