Difficulty:
beer_mbeer_mbeer_m

Genre:
Comedy

Rules:
1) Drink whenever someone says some form of Gigawatt.
2) Drink whenever Doc says "Great Scott."
3) Drink each time there is a clock on screen.
Average User Difficulty:
beer_mbeer_mbeer_mbeer_m

Actors:
Michael J. Fox
Christopher Lloyd
Lea Thompson
Crispin Glover
Thomas F. Wilson
Claudia Wells