Complete the game on the Easy difficulty.
Complete the game on the Hard difficulty.
Complete the game on the Insane difficulty.
Collect every weapon in the game.
Find and complete all of the Hunting side missions.
Find and complete all of the Horse Challenges.
Mine every gold ingot in the West.
Find and complete the 'Keep the Peace' side mission.
Collect every upgrade in the game.
Find and complete all of the Pony Express side missions.
Find and complete all of the Bounty Hunter side missions.
Win the Texas Holdem Tournament side mission.
Progress through the 'Magruder's Mine' level on any difficulty.
Complete the game on the Normal difficulty.
Progress through the 'Escape the Ambush' level on any difficulty.
Progress through the 'Across The Badlands' level on any difficulty.
Progress through the 'Battle at the Steamboat' level on any difficulty.
Progress through the 'Attack the Fort' level on any difficulty.
Progress through the 'Hollister's Fort' level on any difficulty.
Progress through the 'Save Soapy' level on any difficulty.
Progress through the 'Take Down Hoodoo' level on any difficulty.
Progress through the 'Defend the Hideout' level on any difficulty.
Progress through the 'Ambush the Train' level on any difficulty.
Progress through the 'Escape From Jail' level on any difficulty.
Progress through the 'Law and Order' level on any difficulty.
Progress through the 'Stage Coach' level on any difficulty.
Progress through the 'Quick Killer' level on any difficulty.
Progress through the 'The Red Hand Gang' level on any difficulty.
Progress through the 'Honest Tom' level on any difficulty.
Progress through the 'Steamboat Massacre' level on any difficulty.
Progress through 'The Hunt' level on any difficulty.
