Here is the full list of all 34 Furi achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox One.
Defeat The Chain
Defeat The Strap
Defeat The Line
Defeat The Scale
Defeat The Hand
Defeat The Song
Defeat The Burst
Defeat The Edge
Defeat The Beat
Defeat The Flame
Assimilate the Free World and make it your home
Defend the Free World against your invasion
Accept The Song's compromise
Meet with The Voice in the Free World
Meet The Voice in your cell after defeating The Chain
Turn your armor's light ON during a path
Break all of The Line's shields before hitting him
Rise from a K.O. 20 times
Get an A rank in Furi difficulty (story mode)
Get a S rank in Furi difficulty (story mode)
Complete the game in Furier difficulty
Get a S rank in Furier difficulty (story mode)
Keep the armor glowing at maximum level for one full phase
Grab 10 heal pickups during a fight
Achieve 5 perfect parries during one fight against a guardian
Hit one guardian 10 times with a boost hit in one fight without game over
Parry the same bullet 3 times after it bounces back from The Hand's shield
Hit a guardian 10 times with a melee attack in one fight without game over
Parry 20 bullets against a guardian in one fight without game over
Parry 20 consecutive hits against a guardian without getting hit
Defeat a guardian within 5 minutes
Defeat a guardian without taking any hits
Beat Furi’s designer’s best speedrun time: 2:12:42
Beat Furi's combat designer’s best speedrun time: 1:29:56