Here is the full list of all 33 Furi achievements.
The base game contains 33 achievements, and there is 1 DLC pack containing 0 achievements.
Get a S rank in Furier difficulty (story mode)
Complete the game in Furier difficulty
Accept The Song's compromise
Assimilate the Free World and make it your home
Get a S rank in Furi difficulty (story mode)
Meet with The Voice in the Free World
Meet The Voice in your cell after defeating The Chain
Parry 20 bullets against a guardian in one fight without game over
Break all of The Line's shields before hitting him
Defeat a guardian without taking any hits
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
Beat Furi’s designer’s best speedrun time: 2:12:42
Beat Furi's combat designer’s best speedrun time: 1:29:56
Keep the armor glowing at maximum level for one full phase
Defend the Free World against your invasion
Get an A rank in Furi difficulty (story mode)
Defeat The Beat
Defeat The Edge
Defeat a guardian within 5 minutes
Rise from a K.O. 20 times
Parry 20 consecutive hits against a guardian without getting hit
Defeat The Burst
Defeat The Song
Defeat The Hand
Defeat The Scale
Hit a guardian 10 times with a melee attack in one fight without game over
Achieve 5 perfect parries during one fight against a guardian
Defeat The Line
Grab 10 heal pickups during a fight
Defeat The Strap
Defeat The Chain
Turn your armor's light ON during a path