Here is the full list of all 25 ZONE OF THE ENDERS The 2nd Runner: M∀RS / ANUBIS ZONE OF THE ENDERS: M∀RS achievements.
Win your first encounter against the Viola AI
Complete all of the in-game tutorials
Defeat Ardjet
Acquire Jehuty
Collect all achievements
Beat the game with a ranking of S
Beat the game with a ranking of A
Acquire Jehuty Ver. 2
Defeat Vic Viper (Leo)
Defeat the Viola AI for the final time
Defeat Inhert
Defeat Zakat
Defeat Anubis
Defeat Aumaan Anubis
Find Taper in less than 4 guesses
After the initial Vic Viper battle, defeat all of the Naritas in under 90 seconds
Defeat the train in less than 5 minutes
Defeat an enemy by using the shafts at Fort City (Pinch the enemy using the Shafts)
Defeat the 5 BAHRAM Battleships in less than 6 minutes
Earn a Ranking of SS at Vascilia Battle
Earn a Ranking of SS at Aumaan Crevasse
Find all 20 Ex-Missions
Clear Zoradius
Unlock all the frames
Reveal Ken's alternate outfit