Here is the full list of all 57 Ori and the Blind Forest: Definitive Edition (Nintendo Switch) achievements worth 1,250 gamerscore.
Killed 3 enemies without touching the ground
Completed the game on Hard Difficulty
Finished the game in under 3 hours
Juggled a rock 5 times without it hitting the ground
Killed 500 enemies with Spirit Flame
Killed 25 enemies using Bash to reflect projectiles
Found all secrets
Restored all Map Stones
Visited 100% of the map
Collected all Energy Cells
Killed 100 enemies with Charge Flame
Collected all Health Cells
Earned all skills in the Ability Tree
Earned all Combat Skills in the Ability Tree
Collected 200 Energy Shards
Bashed off enemies 10 times in a row without touching the ground
Found the lost corridor in the Misty Woods
Killed 50 enemies with Light Burst
Earned all Utility Skills in the Ability Tree
Saved at every Spirit Portal
Uncovered the mysteries of Naru
Killed 5 enemies using Charge Dash
Activated 3 torches using Light Burst
Killed 5 enemies with Charge Jump
Escaped the Boulder in Black Root Burrows
Restored the Element of Warmth
Rescued Gumo
Entered the Ginso Tree
Restored 50% of all Map Stones
Reunited with Naru
Escaped Kuro
Restored your first Map Stone
Completed the Prologue
Earned all Efficiency Skills in the Ability Tree
Used your first ability point
Killed 4 enemies simultaneously using Charge Flame.
Cleared the Misty Woods
Restored the winds of Nibel
Completed the game
Discovered Gumo
Entered Mt. Horu
Found your first secret
Found 50% of all secrets
Met the Spirit Tree
Obtained the Sunstone
Restored the heart of the Ginso Tree
Escaped the rising waters of the Ginso Tree
Opened 5 shortcuts using the Charge Flame
Created 50 Soul Links
Killed 50 enemies with Stomp
Tricked 5 enemies into killing another enemy
Caused an enemy to destroy itself
Crushed a Ram with a Stomper
Completed the whole game without using an Ability Point
Double Jumped 5 times consecutively without touching the ground
Complete whole game without dying
Complete the game on One Life Difficulty