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.
Fight 100 local matches.
Obtain 450 character customization items.
Obtain 400 player customization items.
Get a perfect win 10 times in online or local matches.
Fight 30 local matches.
Fight on 5 stages in local matches.
Obtain 350 character customization items.
Complete Score Attack Mission.
Fight 10 local matches.
Complete Map 6.
Complete Maps 1 to 6.
Complete Maps 1 to 6 with an A-Rank or above.
Obtain 300 player customization items.
Reach a combined character level of 500.
Win 50 battles using villains.
Perform 50 Plus Ultras using villains.
Acquire 100 titles.
Collect 100,000 hero coins.
Complete Map 5.
Complete Map 4.
View 20 characters' battle entrances.
Win 50 battles using heroes.
Obtain 200 player customization items.
Win 20 battles using heroes.
Perform 50 Plus Ultras using heroes.
Collect 50,000 hero coins.
Complete Map 3.
Reach a combined character level of 100.
Complete Map 2.
Obtain 250 character customization items.
Reach a combined character level of 50.
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.
Win 20 battles using villains.
Complete "Complete Victory."
Use sidekicks 100 times.
Obtain 150 character customization items.
Complete "Encounter."
Complete "A Real Hero."
Trigger 50 wall rushes.
Complete "One For All."
Complete "Climax."
Use sidekicks 50 times.
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."