First, we will start with base achievements.
The journey begins! – just start the game.
2D is power! – find a potion in the upper caves. You can skip the long path by going through the left wall in the room with the second save point in the caves. (You need to jump in order to go through).
There is no fire – just kill the first boss, it’s impossible to miss.
It’s a flashback?! – Almost impossible to miss, just go forward after getting out of the castle with the first boss.
Bad reference – Same as with the previous one.
Scary thing – first mini-boss, unmissable.
What a woman – unmissable, talk to Ella.
Bad girl – unmissable, second boss.
The precious part of me – unmissable, part of cutscene.
Just an old man – find an old man and talk to him when Ella sends you to the Archive. When you are going to the sacred location through the forest, just head right in the big room, the old man will be sitting in the next room.
Elves are the best! – unmissable, talk to Yufi.
Sign of friendship – complete the first part of Yufi’s questline. Bring her relics when she ask you so. All the relics found in the sacred location.
Too smart – unmissable, talk to Chloe.
You call that a golem? – unmissable, third boss.
I believe I can fly! – unmissable, take the wings from the dead body of the third mini-boss (reaper).
Deep dark base – unmissable, find Dotto’s base.
Lost – find a mini-boss in the City of Lost. Nothing special, just requires to explore the location.
Smoking is bad for your health! – unmissable, 4th boss.
Light souls – don’t forget to pick up the soul vessel.
New best friend! – Find Yufi and talk to her in the EVERY room she appears. It simply requires to explore the map.
Sacred thoughts – unmissable, part of a cutscene.
She is an angel! – unmissable, talk to Mia.
The real lab! – unmissable, just progress through the story.
Catkeeper – unmissable, just progress through the story.
Ending A – run away when the final boss will give you a choise.
Ending B – destroy the balk when the final boss will give you a choise.