Full list of all 12 Bright Memory achievements worth 1,000 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Xbox Series X|S.
Cleared the game a third time after continuing
Cleared the game a second time after continuing
Found all collectible items
Floated an enemy for 15 seconds
Took out 30 enemies with headshots
Found the War Storm Packaged version
Killed Xing Tian
Snuffed out a candle
Killed the Lost Forest Lord
Maintained SSS Rank for 30 seconds
Stayed in the air for 10 seconds
Dodged 5 enemy attacks using Flash