Back to the Future The Game

Gemcheats Episode I: It's About Time Trophies
There are 7 bronze, 4 silver, and 1 gold trophy to collect.
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
Episode II: Get Tannen! Trophies
Complete each requirement to get the specified Trophy. There are 6 Bronze Trophies, 4 Silver Trophies and 1 Gold Trophy.
A Minimum of Panic (Bronze)
Rescue Arthur with minimal fuss.
Art Lover (Bronze)
Track down a missing accountant.
Chucklehead (Bronze)
Find "Chuckles Lenart".
Demystifier (Bronze)
Get a full explanation of your situation.
Door Prize (Bronze)
Break the password code without cheating.
Escape Artist (Silver)
Find a hidden passageway.
Kid Restraint (Gold)
Defeat Kid Tannen
Moll Mender (Silver)
Get a gangster's girl to do the right thing.
Police Blotter (Silver)
Dry a cop out.
Tannen Tamer (Silver)
Defeat the Tannen Brothers in sixjumps.
Tuned Out (Bronze)
Enjoy a full set from Hill Valley's leading songstress.
Episode III: Citizen Brown Trophies
All Good Dogs Go To Utah (Silver)
Got caught with Einstein
Final Solution (Gold)
Layout Biff and escape the speakeasy.
Hidden Treasure (Bronze)
Examine every container of contraband in the speakeasy
Hill Valley Tourist (Bronze)
Listen to all tourist audio guides in Hill Valley
Hope You're Insured (Silver)
Use the DeLorean parts to enter Hill Valley
Intervention (Silver)
Got caught with Lorraine's booze
Into the Garbage Chute, McFly-boy (Silver)
Jumped the Decycling Bin
Marty and the Pinheads (Bronze)
Use the spray can to paint Marty's band name in the alley
One Bad Apple (Bronze)
Collect every Demerit in the game
Ruin it for Everyone (Bronze)
Coax Edna out of the courthouse with the buzzer
Seven Minutes in Heaven (Silver)
Got caught making out with Jennifer
Episode IV: Double Visions Trophies
Complete each requirement to get the specified Trophy. There are 9 Bronze Trophies, 3 Silver Trophies and 1 Gold Trophy.
A Not-So-Beautiful Mind (Bronze)
Crafted a Mind Map of Emmett that Reveals him to be a"Degenerate Criminal."
An Uncomfortable Truth (Bronze)
Emmett is Prophetically Honest About His Marriage Prospects.
Breaking Up is Hard to Do (Silver)
Broke up Emmett and Edna.
Edna Was Right! (Bronze)
Revealed Hill Valley Hooliganism Rate
Free Citizen Brown! (Silver)
Rescued Citizen Brown from the Citizen Plus Program.
Let Them Eat, Um, Cake (Bronze)
Offered Algae Cakes to Everyone
Like a Not-So-Fine Wine (Bronze)
Messed with Emmett's Cleanser.
The Other Woman (Bronze)
Got Trixie Ready to Make Edna Jealous
The Power of Love? (Bronze)
Escaped from Marty's Cell.
There's a Moose? (Bronze)
Get a Good Look at Trixie's Postcard
Timely Traveller (Bronze)
Take the Fewest Possible Trips toEmmett's Lab
To the Expo! (Gold)
Marty and Emmett head to the Expo.
Your Own Personal Frankenstein(Silver)
Gave Emmett his Epiphany.
Episode V: OUTATIME Trophies
A Prickly Pair (Bronze)
Had a conversation with a cactus.
Crackpot Mended (Silver)
Restored Edna's memory.
Emmett Finds His Muse (Silver)
Emmett completes his spectacular failure the Expo.
False Impressions (Bronze)
Impersonated three people over the phone.
Full Fair (Bronze)
Get your money's worth at the Expo.
Get it on Tape (Bronze)
Recorded everyone at the Expo.
Green Gobblin' (Bronze)
Treated Desert Edna to an algae cake.
Moonwalker (Bronze)
Busted a move, 80's style.
No Backups (Bronze)
Complete the glass house maze without going back up the stairs.
Raising the Bar (Silver)
Prevented the Great Hill Valley Fire.
The Future isn't Writtten (Gold)
Returned home.
Two-Up (Bronze)
Defuse the standoff while climbing to the second floor no more than two times Download to complete cheats.