Here is the full list of all 37 Nary achievements.
Combine some stuff to become a Pirate
You have seen it all.
Finish the game as the Good Boy
Accept some suspicious offer
Finish 3 levels in a row in the "Ironman" mode
Survive 10 seconds in a "Ghost" mode
Survive 12 seconds in a "Bolt" mode
Finish the Game (any Ending)
Finish the Solitary Dungeon
Finish the Gloomy Caves
Die on the Spikes on the Ceiling
Finish the Thorny Jungle
Finish the Jungle level with a "Sharingan" mode
Finish the Mysterious Forest
Finish the Barren Mountains
Get rewarded for your Good Deeds
Deny an offer from a Stranger
Become the "full" Santa by a chance!
Survive 7 Eye clips
Jump 29 times while "Drunk"
Collect 9 herbs in "Flap" mode using the "Herb Knife"
Manually pick up 49 coins using the "Pick em' Up" mode
Finish the Deserted Paradise with a "Sunken Tombs" mode
Kill 15 foes in "Reverse" mode
Kill >90.00 foes with a "One Punch" mode
Jump on 9 heads using an "Italian" mode
Get cursed 5 times
Collect 99 coins in one "Leprechaun" run
Miss 10 times
Die 5 times. Your Head now get Cursed.
Finish the Ancient Graveyard
Jump 250 times
Slay 99 foes
Finish the Deserted Paradise
Finish a level without any modes or items
Finish a level without skipping a single foe
Die in the first 7 seconds of a level