Here is the full list of all 58 Hellsinker achievements.
Unleash the 4th level of "Dead array" as DeadLiar
Witness the secret of the Scarlet-Queen (Segment2L Boss)
Hear the last words uttered by the Rusted-Dragon
Reach the terminus of"Mausoleum"
Earn an "immortal" bonus (not including the Practice Chamber)
Earn 5 "immortal" bonuses in a single game run (not including the Practice Chamber)
Earn 10 "immortal" bonuses in a single game run (not including the Practice Chamber)
Achieve a Spirit "Breakthrough" (Not including the Practice Chamber)
Achieve a Kill "Breakthrough" (Not including the Practice Chamber)
Earn more than 25 spirit with a single "UNCHAIN" (requires upgraded Spirit gauge)
Earn more than 50 spirit with a single "UNCHAIN" (requires upgraded Spirit gauge)
Earn more than 75 Spirit with a single "UNCHAIN" (requires upgraded Spirit gauge)
Achieve both a Spirit and a Kill "Breakthrough" in a single game run.(not including the Practice Chamber)
Collect the maximum possible amount of crystals in "Mausoleum" (424)
Collect 100 Spirit with a single "FINELINE" bonus (requires upgraded spirit gauge)
Collect 200 Spirit with a single "FINELINE" bonus (requires upgraded spirit gauge)
Collect 400 Spirit with a single "FINELINE" bonus (requires upgraded spirit gauge)
Collect 800 Spirit with a single "FINELINE" bonus (requires upgraded spirit gauge)
Collect 60 Spirit with a single "NUTCRACK" bonus (requires upgraded spirit gauge)
Collect 120 Spirit with a single "NUTCRACK" bonus (requires upgraded spirit gauge)
Collect 180 Spirit with a single "NUTCRACK" bonus (requires upgraded spirit gauge)
Collect 240 Spirit with a single "NUTCRACK" bonus (requires upgraded spirit gauge)
Witness the final form of the Segment 5 boss
Defeat the Segment 7 boss just as the MEMORY TRANSFER gauge is about to reach zero
Unlock the SOUND MEMOIRS option on the Main Menu
Complete Segment 1L With the maximum level of STELLA (A)
Complete the preliminary Practice Chamber
Complete all chapters of the comprehensive Practice Chamber
"Extend" after losing a life
Visit "Mausoleum" before two segments end in "FULL SEQUENCE ORDER"
Earn 20 "immortal" bonuses in a single game run (not including the Practice Chamber)
Lose 9 lives in a single segment without using any continues (not including "Mausoleum" or the Practice Chamber)
Let the time run out with only one life left in the Segment 7 Boss fight
Bring the TRANSPORTER all the way to the boss in Segment 1L
Initiate a boss fight from the "SEGMENT LOCATION" menu (Press the discharge button)
Defeat Glorious-Symbol (Segment 2B boss)
Reach the last SECTOR of Segment 4
Reach Segment 8
Earn 50 Spirit before leaving the CHAFF zone at the start of Segment 1L (LEVEL must be unplugged)
Earn 65 Spirit before leaving the CHAFF zone at the start of Segment 1L (LEVEL must be unplugged)
Earn 160 kills before leaving the CHAFF zone at the start of Segment 1L
Earn 200 kills before leaving the CHAFF zone at the start of Segment 1L
Clear Segment 3L after destroying both CLIONES (large Targets that exist on the right and left sides at the beginning and ends of each field)
Destroy the Scarlet-Queen’s Thorned-Tiara (top middle part of Segment 2L boss)
Start a segment in FULL SEQUENCE ORDER with 0-15 Terra, and finish the sequence without letting your Terra fall to 0 (while also not using any continues)
Unlock "Mausoleum" after clearing Segment 7 in FULL SEQUENCE ORDER. (Cannot unlock it during the Segment)(Cannot have used continue)
Complete a segment in FULL SEQUENCE ORDER with only 1 life left (Cannot have used continue)
After completing a segment in FULL SEQUENCE ORDER with only 1 life left, go on to complete the segment after it. (No skips or continues can be used)
Collect 90 Spirit with a single
Start a segment in FULL SEQUENCE ORDER with only 0~15 TERRA. (cannot have used continue)
Reach STELLA level ‘A’ before any UNCHAINable Targets appear in Segment 1L (Level must be unplugged)
Destroy a total of 24 different parts from Segment 5 boss’s many different forms.
Use Fossil Maiden’s Bacillus Clock (press and release the discharge button very quickly)
Activate Fossil Maiden’s Curtain Riser (Hold down the discharge button) and remain using it until you self destruct (when the time limit is reached)
As Minogame, Reach over 3000 DPS in the Practice Chamber with "MEASURING INSTRUMENT" set to "INTERVAL 10 seconds".
As DeadLiar, maintain a status of SOL:5 and LUNA: H, and fire a prolonged steady stream of "Main Shot".
Achieve a Spirit Breakthrough before completing 3 segments in FULL SEQUENCE ORDER
Achieve a Spirit Breakthrough before completing 2 segments in FULL SEQUENCE ORDER