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