Here is the full list of all 22 El Hijo - there are A Wild West Tale achievements.
Escape the monastery
Inspire 18 children.
Walk 25000 steps in the game
Inspire a child
Start your journey
Reach the town
Complete the game
Inspire all children
Complete the game without being caught
Complete level 10 without being seen
Complete level 16 without using the slingshot
Complete level 8 without hiding inside any objects
Hide from 20 opponents in pollen clouds.
Distract 50 opponents with stones
Hide in 30 pots
Ride 10 Mine Carts
Spend 300 seconds hiding in a coffin.
Shoot all uncaged lanterns in The Gold Mine.
Hit a chicken with a stone
Hang off the edge of a train
Distract 3 opponents with 1 stone
Stun 3 opponents with one fireworks explosion