Here is the full list of all 47 ONE PUNCH MAN: A HERO NOBODY KNOWS achievements.
Earn every trophy.
Reach the maximum Player Level.
Get promoted to Hero Rank Class S.
Reach Player Level 50.
Reach the max level for the monster battle type.
Deepen bonds with ten heroes.
Clear Chapter 11.
Clear Chapter 10.
Clear Chapter 9.
Get promoted to Hero Rank Class A.
Clear 100 or more missions.
Obtain 30 or more skills.
Use a boost item for the first time.
Obtain 150 or more avatar parts (accessories excluded).
Clear Chapter 8.
Obtain 50 or more pieces of furniture.
Equip a Super Killer Move and use it in battle (tutorial excluded).
Clear Chapter 7.
Deepen bonds with five heroes.
Obtain 30 or more Killer Moves.
Clear Chapter 6.
Reach the max level for the machine battle type.
Clear 30 or more subquests (tutorial excluded).
Clear Chapter 5.
Reach the max level for the psychic battle type.
Deepen bonds with a hero.
Reach the max level for the weapon battle type.
Clear Chapter 4.
Clear Chapter 3.
Get promoted to Hero Rank Class B.
Unlock more than 15 characters for Free Battles with Team Rules.
Place furniture in your room for the first time.
Perform a Mode Change in battle for the first time (tutorial excluded).
Reach the max level for the power battle type.
Reach the max level for the standard battle type.
Clear Chapter 2.
Equip a skill for the first time.
Make a purchase for the first time.
Perform a perfect guard in battle for the first time (tutorial excluded).
Change your outfit for the first time.
Clear a mission from Hero Association HQ for the first time.
Set a Killer Move for the first time.
Land the first attack in battle for the first time (tutorial excluded).
Clear a mission from a Hero Association branch office for the first time (tutorial excluded).
Clear a subquest for the first time (tutorial excluded).
Clear Chapter 1.
Increase your Player Level.