Full list of all 11 Memoranda achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Achievements they've won
Achievements they've not won
It starts with "Monkey".
Found all the backer pictures.
Took every humanimal's photo.
Helped the stranded sailor.
No one's stopping you now!
Seems like he had an appropriate name!
Managed to get the card "signed" by Phil.
Found the Spaghetti Man.
Found the frequencies for Qardash.
Changed the music in Mizuki's home.
Solved the puzzles in the doll maker's house.