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