Back to the Future: The Game
60 Achievements
8-10h
PS3
Doc's Legacy
Got Doc's Notebook back from Biff.
74.7%
How to unlock the Doc's Legacy achievement in Back to the Future: The Game - Definitive Guide
Story related trophy, it should unlock just before the DeLorean appears outside of Doc's house. See "A Bicycle Built For Two" for the game walkthrough.