Back to the Future: The Game

This trophy is story related and cannot be missed. This will unlock upon beating Kid Tannen.

The walkthrough for earning this trophy, as well as all the others above can be found  below.

-Interact with Passenger's Side. Wait for the cop and Doc to move
-Interact with Front Bumper. Wait for the cop and Doc to move again
-Interact with Driver's Side. Wait for the cop and Doc to move once again
-Interact with Rear Bumper
-Interact with DeLorean Keys
-Interact with Driver's Side
-Interact with Driver's Seat

Scene changes to Hill Valley town square.

-Dialog (Edna): "My grandpa needs me."
-Dialog (Einstein): Any
-Interact with stick
-Interact with Edna by looking all the way to the right
-Dialog (Emmett): Any
-Dialog (Emmett): "Start without me."
-Interact with Courthouse Doors
-Walk to the Soup Kitchen. Directly across from the Courthouse

Scene changes to a back alley.

-Interact with Medium Crate
-Interact with Medium Crate

Scene changes to inside a bar.

-Trophy: Art Lover Unlocked!
-Interact with Numbers on the right side of the bar. (Combo 7-23-30)
-If you choose to pick up the "Sheet of Paper", DO NOT, and I repeat, DO NOT, examine it from your inventory. This will block you from getting the "Door Prize" trophy further down the road. If you are the type who prefers to play it safe, I'd suggest avoiding it all together, but simply picking it up will not effect your trophy. *Credit to Archigos for the confirmation*
-Interact with Chloroform
- Use Item "Bottle of Chloroform" to equip
-Interact with Ink Bottle (With Bottle of Chloroform equipped)
-Interact with Sign Switch. (These next few moves must be done fairly quickly or else Cueball will come back down downstairs and you will need to load your autosave)
-Interact with Panic Button. Wait briefly until Matches flips the switch himself
-Interact with bottle
-Interact with Panic Button
- Use Item "Bottle" to equip
-Interact with Matches (With Bottle equipped)
-Trophy: A Minimum of Panic Unlocked!

Scene changes to Marty's House, 1986.

-Interact with Front Door
-Dialog (George): Any
-Dialog (George): Any
-Dialog (Lorraine): Any
-Dialog (George): Any
-Dialog (Tannen Brothers): Any
-Dialog (Tannen Brothers): "Dodge! >"
-Dialog (Tannen Brothers): Any
-Dialog (Tannen Brothers): "Jump!"
-Dialog (Tannen Brothers): Any
-Dialog (Tannen Brothers): "Dodge! >"
-Dialog (Tannen Brothers): Any
-Dialog (Tannen Brothers): "Jump!"
-Dialog (Tannen Brothers): Any
-Dialog (Tannen Brothers): "Dodge! >"
-Dialog (Tannen Brothers): Any
-Dialog (Tannen Brothers): "Duck!"
-Trophy: Tannen Tamer Unlocked!

Scene changes to Hill Valley, 1931.

-Walk over to Edna, who is in the the center of town square
-Dialog (Edna): Any
-Dialog (Edna): Any
-Walk over to Emmett inside the Gazebo
-Dialog (Emmett): Any
-Dialog (Emmett): Any
-Dialog (Emmett): Any
-Walk to the Flophouse, on the north side of town square
-Interact with Flophouse Door
-Dialog (Doc): "Where's the DeLorean?"
-Dialog (Doc): "About the speakeasy arsonist..."
-Dialog (Doc): "Why 1931?"
-Dialog (Doc): "Run This Through For Me..."
-Trophy: Demystifier Unlocked!
-Dialog (Doc): "You're in the park."
-Dialog (Doc): "Save Einstein!"
- to exit the conversation and the Flophouse
-Walk back out to the center of town square
-Interact with Edna
-Dialog (Edna): I've got a story for you!"
-Dialog (Edna): "Would-be Inventor Strands Dog on Courthouse"
-Walk over to the Soup Kitchen.
-Walk into the back alley
-Interact with Door

This next section is a bit tricky. The door guard will begin to ask you random questions. Whatever the question ends with, thats what the answer to the question starts with. For example, the door guard asks: "Who gave you the right to knock on my door?", you answer with "Doris Day". He will ask you 3 questions, they all follow this pattern. Get them all correct and you will be allowed into the speakeasy.

Question Round 1 (Question—Correct Answer)
Who gave you the right to knock on my door?--Doris Day
Who said you were worthy?--The old grey mare
Who is the king of Siam?--Am I
Who told you to come here?--Hieronymous Bosch
Who died and made you boss?--Boss Hogg

Question Round 2 (Question—Correct Answer)
What will you do if I let you inside?--Sidle up to your boss
What will you do if I break your leg?--Leggo your Eggo
What will you do tomorrow?--Row my boat
What will you do when I send you away?--Wait til Wednesday
What will you do if there's a raid?--Radio for help

Question Round 3 (Question—Correct Answer)
Where do you hang your hat?--Hattiesburg
Where do you live?--Livermore
Where do you come from?--From Russia, with love
Where you born?--Borneo
Where do you want to be tomorrow?--Rome
Where are you going?--Inglewood

There may be 2 or 3 additional questions that may be asked, but these are the only ones I was asked in 30 minutes straight of talking to the guy. As long as you know the trick, these questions are just common sense anyway.

-Trophy: Door Prize Unlocked!

Scene changes to inside Kid Tannen's speakeasy.

-Interact with Zane
-Dialog (Zane): "About these caricatures on the wall..."
- to exit conversation
- Use Item "Photo of George McFly" to equip
-Interact with Zane (With Photo of George McFly equipped)
-Walk around to the other side of the bar
-Interact with Officer Parker
-Dialog (Officer Parker): "So you've got troubles?"
- to exit conversation
-Walk over to Cueball
-Interact with Sheet Music
-Dialog (Sheet Music): "I Don't Care"
-Wait for Trixie to finish singing
-Dialog (Sheet Music): "Angry Song"
-Wait for Trixie to end her song
-Dialog (Sheet Music): "Sad Song"
-Walk back over to the bar
-Interact with Officer Parker
-Dialog (Officer Parker): "Tell me your troubles"
- to exit conversation
-Walk back over to the Sheet Music
-Interact with Sheet Music
-Dialog (Sheet Music): "Secret Song"
-Walk over to the bar.
-Interact with Officer Parker
-Dialog (Officer Parker): "About that secret..."
-Dialog (Officer Parker): "No"
-Dialog (Officer Parker): "What about the people Kid killed?"
-Dialog (Officer Parker): "C'mon, pull yourself together."
- to exit conversation
-Walk over to the stage
-Interact with Sheet Music
-Dialog (Sheet Music): "Happy Song"
-Trophy: Tuned Out Unlocked!
-Interact with Trixie
-Dialog (Trixie): "What's a nice girl like you..."
-Dialog (Trixie): "Why do you stay with Kid?"
-Dialog (Trixie): "Insurance Policy?"
- to exit conversation
-Walk to the exit
-Dialog (Kid): Any
-Dialog (Kid): Yes
- Use Item on Lighter to equip
-Interact with Kid (With Lighter equipped)
-Walk to the exit
-Walk out of the alleyway
-Walk to the center of town square
-Interact with Edna
-Dialog (Edna): "Nice song!"
-Dialog (Edna): "Can I have a copy of your song?"
- to exit the conversation
-Walk through the center of town over to Einstein
- Use Item on Artie's Pipe to equip
-Interact with Einstein (With Artie's Pipe equipped)
-Walk to the Flophouse on the north side of town square
-Interact with Flophouse Door
-Dialog (Doc): "Send Artie to Trixie!"

Scene transitions to the back alley.

-Interact with Door
-Walk up to the stage
- Use Item on Edna's Lyrics to equip
-Interact with "I Don't Care" Lyrics (With Edna's Lyrics equipped)
-Interact with Trixie
-Dialog (Trixie): "Arthur's waiting outside!"
-Interact with Trixie
-Dialog (Trixie): "What happened out there?"
-Dialog (Trixie): "Tell me what happened!"
-Dialog (Trixie): "Don't destroy the evidence!"
- to exit conversation
-Walk over to the exit and leave
-Interact with Puddle of Blood
-Interact with Door
-Walk around to the other side of the bar
- Use Item on Caricature of George to equip
-Interact with Caricatures. (With Caricature of George equipped)
-Walk over to the stage
-Interact with Trixie
-Dialog (Trixie): "Look who made the Wall of Fame!"
-Trophy: Moll Mender Unlocked!
-Walk over to the roulette table
-Interact with Croupier
-Dialog (Croupier): "Bet on 7, 23, & 30"
-Trophy: Escape Artist Unlocked!
-Walk back to the Soup Kitchen, then to the back alley
-Interact with Door
-Interact with Caricatures. (The Caricatures near Zane, not the ones near Officer Parker) Repeat 2-3 more times until you see a picture of "Chuckles LeNart"
-Trophy: Chucklehead Unlocked
-Walk up on stage

This is the point of no return. If you continue from here you will no longer be able to roam the city at your whim, so make sure you have done anything you wanted to do before continuing on.

-Interact with Sheet of Music
-Dialog (Sheet Music): "You Should Care"
-Trophy: Police Blotter Unlocked!
-Dialog (Matches): Any
-Dialog (Officer Parker): Any
-Interact with Flask, located behind the trash cans
- Use Item on Flask to equip
-Interact with Einstein (With Flask equipped)
-Interact with Button
-Interact with Trash Cans
-Interact with Barrels
-Interact with Kid Tannen
-Interact with Leaky Barrel
- Use Item on Hooch Barrel to equip
-Interact with Gap (With Hooch Barrel equipped)
-Interact with Trash Cans
-Interact with Police Car
-Interact with Kid Tannen. Repeat twice more until Edna escapes
-Interact with Trash Cans
- Use Item on Lighter to equip
-Interact with Hooch Trail (With Lighter equiped)
-Interact with Harness
-Trophy: Kid Restraint Unlocked!