Here is the full list of all 61 Polygod achievements worth 1,000 gamerscore.
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Defeat the first Holy Champion without the use of Blessings.
Defeat the second Holy Champion without the use of Blessings.
Defeat the first Holy Champion with the Bubble Bullets Blessing.
Complete Mazu's Docks without killing a yellow submarine.
Complete the game without killing any ground based enemies.
Finish the game without taking damage once.
Travel through a portal after killing all the enemies in the Garden of Gaia.
Travel through a portal after killing all the enemies in Mazu's Docks.
Travel through a portal after killing all the enemies in Wrath's Quarry.
Travel through a portal after killing all the enemies in Harenam Hall.
Trigger every DoomShroom in the Garden of Gaia, you may not destroy a DoomShroom by any other means.
Do not let a baby jellyfish hatch during the second Holy Champion fight.
Defeat the first Holy Champion with the Laser Shots Blessing.
Beat the game as Faceless the Blessed.
Beat the game as Faceless the Wrathful.
Beat the game as Faceless the Feeble.
Beat the game as Faceless the Shadow.
Beat the game as Faceless the God.
Beat the game as Faceless the Friendly.
Beat the game as Faceless the Fast.
Beat the game as Faceless the Heavy.
Beat mortal mode.
Beat the game with every Faceless One.
Beat the game as Faceless the Foolish.
Beat the game as Faceless the Fey.
Beat the game as Faceless the Soulless.
Beat the game as Faceless the Fallen.
Beat the game as Faceless the Fury.
Beat the game as Faceless the Frozen.
Beat the game as Faceless the Fitful.
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Travel through a portal after killing all the enemies in Raika's Rainforest.
Travel through a portal after killing all the enemies in the Abyss of Chaos.
Travel through a portal after killing all the enemies in the Void of Truth.
Defeat the third Holy Champion without the use of Blessings.
Defeat the fourth Holy Champion without the use of Blessings.
Defeat the fifth Holy Champion without the use of Blessings.
Defeat the sixth Holy Champion without the use of Blessings.