Here is the full list of all 22 El Hijo - there are A Wild West Tale achievements.
Complete the game
Inspire all children
Hide from 20 opponents in pollen clouds.
Ride 10 Mine Carts
Stun 3 opponents with one fireworks explosion
Reach the town
Hang off the edge of a train
Walk 25000 steps in the game
Distract 50 opponents with stones
Shoot all uncaged lanterns in The Gold Mine.
Distract 3 opponents with 1 stone
Escape the monastery
Inspire 18 children.
Hit a chicken with a stone
Start your journey
Inspire a child
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 in 30 pots
Spend 300 seconds hiding in a coffin.