Here is the full list of all 45 Digimon World: Next Order achievements.
Acquired all achievements
Completed DigiCards
Raised 200 types of Digimon
Maxed out grades on all facilities as builder
Partner reborn as DigiEgg 20 times
Won all Colosseum competitions
Maxed out Tamer level
Raised 100 types of Digimon
Partner reached age 20
Maxed out city's Prosperity
Raised 50 types of Digimon
Cleared all extra dungeons
First DNA Digivolution
Acquired over 1,000,000 bits
Defeated Armageddemon
Won 300 battles
Cleared Chapter Four
Cleared Chapter Three
Cleared Chapter Two
Prosperity at level 100
First camp
First Colosseum victory
Prosperity at level 50
Cleared Chapter One
Maximum value for DigiFriend
Inflicted 9,999 damage in one attack
First Digivolution to Mega
Acquired over 100,000 bits
First time fleeing from a fight
First Digivolution to Ultimate
All skills for Partner Digimon at 1,000
First king-sized foe defeated
Inflicted 1,000 damage in one attack
Maximum value for Bond
First fish caught
First Digivolution to Champion
First Tamer level
First food ingredient item picked up
First materials acquired
Prosperity at level 1
Finished a battle with no damage
First Digivolution to Rookie
First training mistake
First training
First Partner Digimon reborn as DigiEgg