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