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