Here is the full list of all 52 Boot Hill Heroes achievements.
Give mom some money to save the farm
Fall out of the cinnabar mines
Get "Licked" a dozen times
Complete the first act of this saga
Defeat Coyote Saint in the past
Defeat Scorpion Saint in the past
Defeat Burning Crow in the past
Defeat Creed Little in the past
Defeat Stampede Sally in the past
Defeat Tuco Delgado in the past
Defeat Monty Spades in the past
Defeat Dean Locke in the past
Buy a baseball bat from Humble Brian
Set out to track down the Saints-Little Gang
Watch Monty escape once more...
Defeat Ivan the Strongman
Complete Moon's performance in the circus show
Defeat an escaped Lion
Have 40 different kinds of materials in your inventory
Attempt to ride your horse on the Snake Tail River
Have two players play Boot Hill Heroes
Get hopelessly lost in Fool's Feast
Defeat Razor Paw
Earn seven dropped materials from a battle
Imbue your hunting knife for Dreaming Lark
Allow an enemy to be defeated from an "on fire" ailment
Encounter the Chepakwik Princess, Moon Dancer
Learn the terrible secret behind the attack on Ashwood
Defeat the Blue Dwarf Bear
Listen to Doc in the Whisker Woods
Throw a log at an enemy
Meet the bounty hunter called Doc
Defeat all the bullies in Mrs. Mowry's classroom
Meet firecracker rodeo gal, Rosy Garrett
Defeat an enemy without getting hit
Put on your hat, say goodbye, and venture out into the world.
Defeat the Weezler and rid the barn of varmints
Open your eyes and begin your adventure!
Learn all you can from the mysterious "Ottor"
Equip a four-character party with pitchforks
Get new hats from the Desert Skags
Speak to Higgins Comfort multiple times
Hold 50 eggs
Use "Trip" a dozen times
Get a four character party entirely full of wounds
Pluck materials from 50 animals
Max out a "Pump" attack
Get a 4x Star Shot on an enemy
Save Kickstart Creek
Have a four character party completely full of perks
Complete Mad Man Mitch's quest
Have four players play Boot Hill Heroes