Here is the full list of all 38 Eastern Exorcist achievements worth 1,000 gamerscore.
Finish the game on standard difficulty at Level 1
Finish the game on standard difficulty with no more than 60 healings
Complete Lu Yunchuan or Xiahou Xue's story without using Excess Replenishments
Complete the journey of Lu Yunchuan
Complete the journey of Xiahou Xue
Reach 30 level of Lu Yunchuan
Thoroughly tempered
Perform perfect dodge 5 times in a battle while on the verge of death
Perform counter attack 3 times in a battle while on the verge of death
Perform counter attack and bounce the enemy's projectile back 3 times in a battle
Dispel 3 or more demons at once
Eliminate Snow Ape
Eliminate Fish Fiend
Eliminate Green Wraith
Eliminate Shura
Eliminate Chu
Eliminate Three-faced Rakshasa
Eliminate Evil Treant
斩灭陆云川第二章强敌——千肢瘴魔
Eliminate Dragon God
Eliminate Colonel Yin
Eliminate Marquis Xi
Eliminate Lady Poison
Eliminate King Mandrill
Eliminate ???
Eliminate Python Yaksha
Eliminate Elk Warrior
Eliminate Demon Canine
Eliminate Dark General
Eliminate Tang Ming
Eliminate Skeleton Arhat
Eliminate Yaksha General
Eliminate Headless Commander
Eliminate Ghost Buddha
Eliminate Bloodwing Puppet
Eliminate Burdened Puppet
Eliminate Blood Demon
Eliminate Chaos