Back to the Future: The Game

This trophy is story related, and will unlock after using Einstein to corner Biff, then using the panic button to knock him out.

For the complete trophy walkthrough, see below:

• Interact with Wrecked DeLorean
• Interact with Horn
• Interact with Jennifer
• Dialog (Jennifer): Any
• Dialog (Jennifer): "Help me down."
• Dialog (Jennifer): "Do you have anything useful?"
• Dialog (Jennifer): "May I have the tire iron?"
• to exit.
• Use Item "Kid Tannen's Flask" to equip.
• Interact with Jennifer (With "Kid Tannen's Flask" equipped.)
• Walk left to the front gate.
• Interact with Squawk Box.
• Use Item "Tire Iron" to equip.
• Interact with Gate (With Tire Iron equipped). (Demerit earned-- Huge thanks to WeakerYouth for finding this one.)
• Walk right to the wrecked DeLorean.
• Interact with "Battery".
• Use Item "Tire Iron" to equip.
• Interact with "Wheel" (With "Tire Iron" equipped.)
• Use Item "Battery" to equip.
• Interact with "Wheel" (With "Battery" equipped.)
• Trophy: "Hope You're Insured" Unlocked.

Scene change to Hill Valley, 1986.

• Dialog (Officer Parker): "Where can I find Citizen Brown?"
• to exit.
• Interact with "Self Tour". (1/7)
• Walk left, to the other side of the statue.
• Interact with "Self Tour". (2/7)
• Walk left, passed the Citizen Plus Table.
• Interact with "Self Tour". (3/7)
• Walk left, towards the soup building, then left again passed all of the tables.
• Interact with "Self Tour". (4/7)
• Walk back passed the soup building, and cross the crosswalks to the north side of town.
• Walk to the right, in front of E. Brown Industries.
• Interact with "Self Tour". (5/7)
• Walk to the courthouse, on the east side of town.
• Interact with "Self Tour". (6/7)
• Walk right, passed Officer Parker.
• Interact with "Self Tour". (7/7)
• Trophy: "Hill Valley Tourist" Unlocked!
• Walk left, passed the bin.
• Interact with "Buzzer".
• Interact with "Buzzer".
• Interact with "Buzzer". (Repeat until Edna comes out of the building.)
• Trophy: "Ruin it for Everyone" Unlocked!
• Interact with Guard Shack.(Demerit earned.)
• Walk in to the center of town square, to the left side of the statue.
• Interact with Biff.
• Dialog (Biff): "Was that Doc in the car?"
• Dialog (Biff): "Bad apple?"
• Dialog (Biff): "Tell me about your sordid past."
• Dialog (Biff): "Tell me about the illegal substances."
• Dialog (Biff): "Tell me about the vicious dogs?"
• Dialog (Biff): "Tell me about the "illegal" women."
• Dialog (Biff): "I've heard enough".
• Dialog (Biff): "Do I have a shot at seeing Citizen Brown?"
• to exit.
• Walk over to the soup building, and behind it. (Where Jennifer walked.)

Scene changes to Back Alley.

• Exit the back alley.
• Walk in to the center of town square, by the statue.
• Interact with Lorraine.
• Dialog (Lorraine): "Whose golf cart is that?"
• Walk left, towards the golf cart.
• Interact with "Electric Car".

Scene changes to the McFly house.

• Interact with Marty's Guitar.
• Dialog (George): "Give me the guitar."
• Dialog (George): "I need it to impress Jennifer."
• Use Item "Lorraine's Time Sheet" to equip.
• Interact with George. (With "Lorraine's Time Sheet" equipped.)
• Dialog (George): Any.
• Dialog (George): Any.
• to exit.
• Dialog (George): Any
• Walk out towards the street.
• Interact with "Electric Car."

Scene changes to Hill Valley, Town Square.

• Walk over to the statue in the center of town square.
• Interact with Lorraine.
• Dialog (Lorraine): "Ask about flask."
• Interact with Statue.
• Interact with Statue (Again).
• Walk around the statue.
• Interact with Lorraine.
• Walk around the statue.
• Interact with Flask.
• Walk over to the courthouse.
• Use Item "Lorraine's Flask" to equip.
• Interact with Officer Parker (With Lorraine's Flask equipped.)
• Trophy: "Intervention" Unlocked!
• Walk over to the soup shop on the west side of town.
• Interact with Sign. (Sign below the counter, not menu sign.)
• Interact with Window.
• Dialog (Leech): "Free samples?"
• Dialog (Leech): "Never mind."
• to exit.
• Walk into the back alley.

Scene changes to back alley.

• Interact with Ammo Box.
• Use Item "Spray Pain" to equip.
• Interact with "Wall" (With Spray Paint equipped.)
• Trophy: "Marty and the Pinheads" Unlocked!
• Interact with Ammo Box.
• Interact with Plank.
• Interact with Fridge.
• Use Item "Spray Paint" to equip.
• Interact with Plank (With Spray Paint equipped.)
• Exit the back alley.
• Enter the back alley.
• Interact with Plank
• Interact with Table.
• Use Item "Hotdog Sample" to equip.
• Interact with Einstein (With Hotdog Sample equipped.)
• Trophy: "All Good Dogs Go To Utah" Unlocked!

Scene changes to town square.

• Interact with Statue (Demerit earned.)
• Interact with Squawk Box.
• Interact with Squawk Box. (Enjoy your Han Solo reference)
• Interact with Squawk Box. (Demerit received.)
• Walk over to the soup shop.
• Enter the back alley.

Scene changes to back alley.

• Interact with Jennifer.
• Dialog (Jennifer): "You and the SoupMo guy?"
• Dialog (Jennifer): "Guitar? I play guitar!"
• Dialog (Jennifer): "I can outplay Leech any day!"
• Dialog (Leech): "Scissor Kick."
• Dialog (Leech): "Move towards Jennifer." (You may need to move toward amp before this option is available.)
• Dialog (Leech): "Climb on platform."
• Dialog (Leech): "Hop" (If this option is not available, you will need to select Climb on Platform again.)

This scene can play out a variety of different ways. It sometimes gives you different options, and sometimes Marty and Leech move differently, meaning you must react differently. Your goal here is to get Leech to stand on top of the plank above the dumpster, then hop. Do whichever moves are needed to get Leech into position.

• Trophy: "Seven Minutes in Heaven" Unlocked!
• Trophy: "One Bad Apple" Unlocked!

Scene changes to inside the courthouse.

• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Dialog (Doc): Any
• Interact with Fish Tank
• Interact with Portrait
• Interact with Photo of Einstein
• Interact with 1931 Photo
• Interact with Marty and Doc

Scene changes to the McFly house.

• Interact with Bat
• Interact with Tape Case
• Dialog (George): Any
• Dialog (George): Any
• Dialog (George): "I need to give it to Citizen Brown."
• Use Item (Select any of your demerits here) to equip.
• Interact with George (With Demerits equipped.)
• Dialog (George): "Do it for Arthur."
• Interact with Monitors.
• Interact with Switch (On bottom left screen.)
• Interact with Switch (On bottom left screen again.)
• Interact with VCR (On bottom left screen.)

Scene changes to town square.

• Dialog (Biff): "Where's my dad's secret tape?"
• Dialog (Biff): "You really don't know anything about my dad's tape?"
• Dialog (Biff): "Why did you hurt my dad?"
• Dialog (Biff): "Where were you when my dad was attacked?"
• Dialog (Biff): "What's the last thing you remember?"
• Dialog (Biff): "Let me see your watch."
• Interact with Mode
• Interact with Hour Up (Keep pressing until X is selected.)
• Interact with Minute Up (Keep pressing until 11 is selected.)
• Interact with Mode
• Dialog (Biff): "Where's my dad's tape?"
• Dialog (Biff): "Could you go get my dad's tape?"

This is the point of no return. Do anything else you would like to do now, otherwise you won't be able to go back.

• Interact with Bin
• Trophy: "Into the Garbage Chute, McFly-boy" Unlocked!

Scene changes to basement room.

• Interact with License Plates.
• Interact with Beer.
• Interact with Porn.
• Interact with Cigars.
• Dialog (Doc): "Don't be so hard on yourself"
• Dialog (Doc): "Your father wouldn't blame you."
• Dialog (Doc): "I'm sorry about Edna."
• Interact with License Plates.
• Interact with Video Game.
• Interact with Beer.
• Interact with Novelties.
• Interact with Cigars.
• Interact with Pinball Parts.
• Interact with Porn.
• Interact with Skateboards.
• Interact with Records.
• Interact with BB Guns
• Interact with Candy (This one may or may not be needed. I got the trophy without it, but others have said they didn't get the trophy until they interacted with it.)
• Trophy: "Hidden Treasures" Unlocked!
• Interact with Cage.
• Interact with Records (Quickly).
• Interact with Cage.
• Interact with Records (Quickly).
• Interact with Einstein (Quickly).
• Interact with Panic Button.
• Trophy: "Final Solution" Unlocked!