Read all letters.
Read all of Bianca's journal entries.
Listen to all shells.
Turn all altars.
Activate all frescos.
Complete all cairns.
Read a letter.
Turn an altar.
Listen to a shell.
Complete a cairn.
Activate a fresco.
Complete the game.
Place a piton at the top of a wall run.
Complete more than 200 jumps or double jumps in a game.
Scare more than 10 chocos back to their burrow.
Restore your stamina more than 50 times while climbing.
Hug the ballast.
Hug the ballast 20 times.
Stop 25 pebbles with a single echo from the ballast.
Use the echo on a frozen ballast in the crater.
Hold the ballast tight in the crater.