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