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