Here is the full list of all 41 Gods Trigger achievements.
Complete all levels of Chapter I.
Kill 20 marked enemies.
Stealth kill 20 enemies.
Perform a 5x combo kill.
Finish a level in co-op mode.
Collect all achievements.
Complete all levels of Chapter II.
Complete all levels of Chapter III.
Complete all levels of Chapter IV.
Complete the game in story mode.
Kill 666 enemies.
Perform a 10x combo kill streak.
Perform a 20x combo kill streak.
Finish one non-tutorial level without dying.
Finish all levels with an A grade.
Finish all levels with an S grade.
Finish all chapters in co-op mode.
Finish all levels in arcade mode.
Collect one full set of Helljoy Magazine pages.
Collect all Helljoy Magazine pages sets.
Kill 3 enemies with 1 shot of the revolver.
Steal 30 weapons using Judy's upgraded chain.
Make Mind Control possessed opponents to kill 30 other enemies.
Suck 6 enemies into a single vortex using the Dark Vortex ability.
Confuse enemies with the Mirror Image ability 30 times.
Kill 30 enemies with the Exploding Corpses ability.
Kill 4 enemies at once with an exploding projectile shot through the Fire Wall.
Kill 3 enemies at once when using the Invisibility ability.
Kill 30 enemies with a deflected bullet using the upgraded Divine Shield ability.
Freeze 6 enemies in time simultaneously using the Time Freeze ability.
Smash 10 enemies against the wall with the upgraded Holy Push ability.
Catch 30 enemies in a trap using the Time Bubble ability.
Kill 5 enemies with Judy's upgraded teleport ability.
Kill 5 enemies by knocking out doors with Harry's upgraded dash ability.
Kill 3 enemies with a single sniper bullet in chapter III level 4.
Kill all enemies in chapter IV level 1.
Make 30 Synchro Kills while playing in co-op mode.
Perform 10 executions.
Reach level 30 with Harry.
Reach level 30 with Judy.
Find all of the hidden perk chests.