Here is the full list of all 50 Injustice: Gods Among Us Ultimate Edition achievements.
Unlock everything in the Archives
Complete Battle Mode
Reach Level 100
Win 100 complete Online Matches
Play 200 complete Online Matches
Win 10 complete Ranked matches
Vote Correctly in a KOTH match
Dethrone the King in an online match
Enter Online Practice with someone on your friends list
Win 1 complete Ranked match
Win a single online match
Defeat a Survivor
Complete All S.T.A.R. Lab Missions with 3 Stars
Beat All S.T.A.R. Lab Missions (Excluding DLC)
Use every interactable and win in a multiplayer match
Perform 8 throws and win in a multiplayer match
Make a comeback when at low health (10% or less)
Perform every level interaction once
Perform every Meter Burn special move of every character
Defeat every Villain With Batman
Get 100 Stars in S.T.A.R. Lab Mode
Perform every special move of every character
Complete Classic Battle with all characters
Send an opponent through all three Metropolis transitions in one fight
Perform a 10 hit combo with every character
Win a match as Deathstroke without missing a shot (minimum 12 shots)
Win a match with Green Arrow using only arrows
Enter Practice Mode
Knock opponent through all transitions across all levels
Win with Batman using every special move and his Supermove
Perform every character's supermove
Win a multiplayer match with a timeout
Cause maximum damage in all Arenas (does not include Practice mode)
Unlock a costume in the Archives
Unlock All costumes in the Archives
Complete Classic Battle with any character
Equip a new Icon
Equip a new Character Portrait
Equip a new Background Image
Complete Tutorial
Get 3 stars on 1 S.T.A.R. Lab Mission
Complete 1 S.T.A.R. Lab Mission
Complete 100% of Story Mode
Win all story mode minigames
Win a match with the super move of any character
Complete 50% of Story Mode
Knock an opponent through a transition
Reach Level 10
Win a Clash sequence with any character
View Your Hero Card