Here is the full list of all 59 Back to the Future: The Game - there are 30th Anniversary Edition achievements worth 1,000 gamerscore.
Returned home.
Prevented the Great Hill Valley Fire.
Solved the saloon puzzle with no more than two trips to the second floor.
Restored Edna's memory.
Had a conversation with a cactus.
Treated Desert Edna to an algae cake.
Emmett completes his spectacular failure at the Expo.
Got your money's worth at the Expo.
Busted a move, 80's style.
Impersonated three people over the phone.
Recorded everyone at the Expo.
Completed the glass house maze without going back up the stairs.
Marty and Emmett head to the Expo.
Gave Emmett his Epiphany.
Broke up Emmett and Edna.
Took the fewest possible trips to Emmett's lab.
Messed with Emmett's cleanser.
Got Trixie ready to make Edna jealous.
Crafted a mind map of Emmett that reveals him to be a "Degenerate Criminal."
Emmett is prophetically honest about his marriage prospects.
Revealed the Hill Valley hooliganism rate.
Offered algae cakes to everyone.
Got a good look at Trixie's postcard.
Rescued Citizen Brown from the Citizen Plus program.
Escaped from Marty's cell.
Layout Biff and escape the speakeasy.
Examined every container of contraband in the speakeasy.
Jumped into the Decycling Bin.
Got caught making out with Jennifer.
Collected every Demerit in the game.
Got caught with Lorraine's booze.
Got caught with Einstein.
Use the spray can to paint Marty's band name in the alley.
Coax Edna out of the courthouse with the buzzer.
Listened to all tourist audio guides in Hill Valley.
Used the DeLorean parts to enter Hill Valley.
Defeated Kid Tannen.
Got a gangster's girl to do the right thing.
Find a hidden passageway.
Dried a cop out.
Enjoyed a full set from Hill Valley's leading songstress.
Found "Chuckles Lenart".
Broke the password code without cheating.
Got a full explanation of your situation.
Defeated the Tannen Brothers in six jumps.
Rescued Arthur with minimal fuss.
Tracked down a missing accountant.
Rescued Doc from Kid Tannen.
Perfectly repeated dialog while repeating Doc's temporal experiment.
Acquired Emmett's Rocket Drill.
Flawlessly mixed up a batch of Emmett's Rocket Fuel.
Delivered the subpoeana to Arthur McFly.
Managed to get 190-proof alcohol delivered to Emmett's.
Discovered the origin of the "new" DeLorean.
Talked Emmett into completing the Rocket Drill.
Namechecked "Back to the Future" creators.
Traveled back in time to rescue Doc.
Heard about the curious fate of Marshall Strickland.
Got Doc's Notebook back from Biff.