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