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.
Clear 100 or more missions.
Deepen bonds with ten heroes.
Reach the max level for the monster battle type.
Clear Chapter 11.
Clear Chapter 10.
Clear Chapter 9.
Use a boost item for the first time.
Deepen bonds with five heroes.
Obtain 30 or more skills.
Obtain 150 or more avatar parts (accessories excluded).
Obtain 30 or more Killer Moves.
Get promoted to Hero Rank Class A.
Clear Chapter 8.
Reach the max level for the machine battle type.
Clear Chapter 7.
Clear Chapter 6.
Clear 30 or more subquests (tutorial excluded).
Clear Chapter 5.
Reach the max level for the psychic battle type.
Equip a Super Killer Move and use it in battle (tutorial excluded).
Obtain 50 or more pieces of furniture.
Deepen bonds with a hero.
Reach the max level for the power battle type.
Clear Chapter 4.
Unlock more than 15 characters for Free Battles with Team Rules.
Reach the max level for the standard battle type.
Reach the max level for the weapon battle type.
Clear Chapter 3.
Get promoted to Hero Rank Class B.
Perform a Mode Change in battle for the first time (tutorial excluded).
Place furniture in your room for the first time.
Equip a skill for the first time.
Clear Chapter 2.
Make a purchase for the first time.
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.
Perform a perfect guard in battle for the first time (tutorial excluded).
Clear a subquest for the first time (tutorial excluded).
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 Chapter 1.
Increase your Player Level.