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.
Restored Edna's memory.
Emmett completes his spectacular failure at the Expo.
Impersonated three people over the phone.
Marty and Emmett head to the Expo.
Gave Emmett his Epiphany.
Broke up Emmett and Edna.
Got Trixie ready to make Edna jealous.
Crafted a mind map of Emmett that reveals him to be a "Degenerate Criminal."
Messed with Emmett's cleanser.
Revealed the Hill Valley hooliganism rate.
Rescued Citizen Brown from the Citizen Plus program.
Escaped from Marty's cell.
Layout Biff and escape the speakeasy.
Jumped into the Decycling Bin.
Got caught making out with Jennifer.
Got caught with Einstein.
Got caught with Lorraine's booze.
Listened to all tourist audio guides in Hill Valley.
Used the DeLorean parts to enter Hill Valley.
Defeated Kid Tannen.
Dried a cop out.
Enjoyed a full set from Hill Valley's leading songstress.
Got a gangster's girl to do the right thing.
Got a full explanation of your situation.
Broke the password code without cheating.
Rescued Arthur with minimal fuss.
Tracked down a missing accountant.
Rescued Doc from Kid Tannen.
Acquired Emmett's Rocket Drill.
Delivered the subpoeana to Arthur McFly.
Managed to get 190-proof alcohol delivered to Emmett's.
Talked Emmett into completing the Rocket Drill.
Traveled back in time to rescue Doc.
Got Doc's Notebook back from Biff.
Chat with Carl Sagan.
No mistakes when making rocket fuel.
Ema's Marshall.
Sign here.
In the movie they said.
Find a hidden passageway.
Defeat the Tannen Brothers in six jumps.
Find "Chuckles Lenart".
Collect every Demerit in the game.
Tag Marty's band name.
Examine every container of contraband in the speakeasy.
Get Edna out of the courthouse.
Treats for all.
Tell the Doc truth.
Take the fewest possible trips to Emmett's lab.
Get a good look at Trixie's postcard.
Give Edna a treat.
Look for the desert plant.
Complete the glass house maze without going back up the stairs.
Record everyone at the Expo.
Get your money's worth at the Expo.
Solve the saloon puzzle with no more than two trips to the second floor.
Bust a move, 80's style.