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