Here is the full list of all 52 HunterX achievements.
Reach level 199.
Reach level 100.
Defeat a specific boss.
Successfully enhance 1 type of Occult to max level.
Acquire all skills.
Successfully enhance 1 type of weapon to max level.
Successfully enhance a weapon.
Solve the special puzzle of the Born Tower.
Acquire the Spirit Sword.
Obtain 15 types of Occult.
Acquire the Icy Beam.
Defeat the Blacksmith in battle.
Successfully enhance an Occult.
Defeat the Witch in battle.
Solve the special puzzle of the Flame Dragon Temple.
Solve the special puzzle of Castle: Upper Floor.
Parry an enemy's physical attack.
Solve the special puzzle of Castle: Lower Floor.
Defeat a boss without taking any damage.
Reach level 50.
Acquire the Acid Dragon.
Destroy 666 Karma Crystals on the map.
Acquire the Priestess' Curved Blade.
Remove debuff.
Parry an enemy's bullet.
Acquire the Spider Saliva.
Obtain 5 types of Occult.
Defeat the Priestess in battle.
Solve the special puzzle of Battle Ruins.
Obtain Occult.
Penetrate an enemy with Shadow Dash.
Destroy an enemy's bullet.
Reach the next level.
Retrieve Karma.
Resurrect after being killed by a monster.
Defeat 5 types of bosses without taking any damage.
Defeat 10 types of bosses without taking any damage.
Defeat 18 types of bosses without taking any damage.
Acquire the Flame Halberd.
Obtain 22 types of Occult.
Remove all equipment and defeat a monster.
Resurrect after getting caught in a trap.
Resurrect after being killed by a Debuff.
Explore every map.
Complete the monsters in your Archive.
Complete the items in your Archive.