Seemed to get this as soon as starting the game
Defeat an enemy
Teleport through at least 7 unique teleport points in a row
Can get in 3rd level, when you are Hiko and going through the teleporting lights, when you get to the 3rd set of these just keep spamming the action button and you'll have about 8 in a row.
Warm yourself at a fire after nearly freezing
In about the 5th level control the Dad through the level until Hiko calls out to you, switch to Hiko who has ghosts closing in on him back at the fire. Switch back to the Dad, head back to the fire. His view should be a bit smaller and frosted over, when he gets back to the campfire the achievement unlocked.
Pretty much though on this level - just stand out in the cold for a while until the screen frosts over, then go back and start right next to one of the fires.
Complete any 5 scenes without dying
Unlocks when you reach the end of the first level
Defeat 7 unique enemies in a single playthrough
Complete any 10 scenes without dying
Finish the game without dying more than 3 times
Finish the game in under 2 hours
Find and collect a spirit rune
Can get in the 2nd level, just keep using the Dad and stick to the top path before going underground.
Find and collect 50% of all spirit runes
Find and collect all spirit runes