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