Here is the full list of all 44 WARRIORS OROCHI 3 Ultimate Definitive Edition achievements.
Performed all of the special Triple Rush attacks.
Defeated 10,000 enemies.
Cleared 5 straight stages in Gauntlet Mode.
Unlocked all of the playable characters within Gauntlet Mode.
Used the Craft command for the first time.
Cleared the stage "Rescue of the Mystics" in Story Mode.
Cleared the stage "Revenge of the Fox" in Story Mode.
Found Kyūbi's nine tails and defeated them.
Found Kyūbi's tail and defeated it for the first time in Story Mode.
Cleared the stage "Escape from the Mystic Realm" in Story Mode.
Cleared the stage "Showdown at Odawara Castle" in Story Mode.
Cleared the stage "War against the Serpent King" in Story Mode.
Unlocked Yinglong as a playable character.
Cleared the stage "Battle of Itsukushima" in Story Mode.
Cleared the stage "The Imprisonment of Tamamo" in Story Mode.
Made it through 50 Survival battles in Duel Mode.
Promoted a single officer a total of 3 times.
Cleared Gauntlet Mode for the first time.
Maxed out Bonds with one of these officers: Momiji, Kasumi, Sterkenburg or Sophitia.
Used a special Triple Rush attack.
Unlocked Momiji, Kasumi, Sterkenburg and Sophitia as playable characters.
Performed a Formation Attack in Gauntlet Mode.
Summoned an ally for the first time in Gauntlet Mode.
Completed a request for the first time in Gauntlet Mode.
Defeated an Otherworld Invader in Gauntlet Mode.
Cleared a stage for the first time in Gauntlet Mode.
Obtained a Mystic Weapon for the first time.
Cleared a battlefield in Musou Battlefields for the first time.
Played Survival for the first time in Duel Mode.
Performed a mounted True Triple Attack.
Used a True Musou Burst.
Changed your character's battle style.
Changed the color of an officer's costume.
Played a match against the CPU for the first time in Duel Mode.
Used a Strategy Card for the first time in Duel Mode.
Used an aerial Special Attack.
Obtained a Scroll of Enlightenment.
Accomplished all of the Achievements in the game.
Obtained all of the Strategy Cards in the game.
Obtained all of the Mystic Weapons.
Used the Craft command 100 times.
Completed all of the requests within Gauntlet Mode.
Cleared all of the stages within Gauntlet Mode.
Played a match with another player for the first time in Duel Mode.