Here is the full list of all 41 Gods Trigger achievements.
Complete all levels of Chapter III.
Kill 3 enemies with a single sniper bullet in chapter III level 4.
Kill 20 marked enemies.
Complete all levels of Chapter II.
Perform a 10x combo kill streak.
Kill 666 enemies.
Stealth kill 20 enemies.
Complete all levels of Chapter I.
Perform 10 executions.
Perform a 5x combo kill.
Finish a level in co-op mode.
Collect all achievements.
Complete all levels of Chapter IV.
Complete the game in story mode.
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 all enemies in chapter IV level 1.
Make 30 Synchro Kills while playing in co-op mode.
Reach level 30 with Harry.
Reach level 30 with Judy.
Find all of the hidden perk chests.