100% Syncs measure the excellence of your team of Assassins. Each time you play a Memory, you can try to complete an optional Objective called “100% Sync”. If you succeed and successfully complete the Memory (even if it required a second attempt), peel the corresponding sticker and place it onto its dedicated spot in the Diary of Memories located at the end of the Campaign Booklet.
Since practice makes perfect, you have just unlocked your first 100% Sync! Place this sticker on the corresponding location under Memory 0.1 block in the Diary of Memories located at the end of the Campaign booklet.
For each 100% Sync completed while playing all or part of a Memory in Easy mode, place the gray version of the 100% Sync sticker in the Diary of Memories. Note: You can change the game’s difficulty from Memory 0.2 onwards.
Note: Every 100% Sync you unlock in a campaign is valid for all the campaigns you played before. You can place the matching sticker on their Diaries as well.