Here is the full list of all 57 MY HERO ONES JUSTICE achievements.
Obtain 400 player customization items.
Obtain 450 character customization items.
Obtain 350 character customization items.
Fight 100 local matches.
Reach a combined character level of 500.
Obtain 300 player customization items.
Complete Maps 1 to 6 with an A-Rank or above.
Complete Score Attack Mission.
Complete Map 6.
Complete Maps 1 to 6.
Win 50 battles using heroes.
Fight 30 local matches.
View 20 characters' battle entrances.
Perform 50 Plus Ultras using villains.
Fight on 5 stages in local matches.
Collect 100,000 hero coins.
Fight 10 local matches.
Complete Map 5.
Acquire 100 titles.
Complete Map 4.
Perform 50 Plus Ultras using heroes.
Obtain 200 player customization items.
Reach a combined character level of 100.
Obtain 250 character customization items.
Win 50 battles using villains.
Get a perfect win 10 times in online or local matches.
Fight 50 online battles.
Fight 20 online battles.
Collect 50,000 hero coins.
Fight 5 online battles.
Win 20 battles using heroes.
Complete Map 3.
Reach a combined character level of 50.
Complete Map 2.
Use sidekicks 100 times.
Complete Map 1.
Complete every story chapter.
Complete every story chapter with an A-Rank or above.
Complete "All For One."
Obtain 100 player customization items.
Complete "Complete Victory."
Win 20 battles using villains.
Obtain 150 character customization items.
Complete "Encounter."
Complete "A Real Hero."
Complete "One For All."
Trigger 50 wall rushes.
Use sidekicks 50 times.
Complete "Climax."
Acquire 20 titles.
Complete "Up and Over."
Perform 1,000 combos against opponents.
Complete "Re-Ingenium."
Use sidekicks 10 times.
Use Quirk Specials 100 times.
Get an Ultra Finish.
Complete "Bizarre! Gran Torino Appears."