The Gunstringer Cheats

Lucky Prize Winner (15): Find an achievement hidden in a piece of concept art.
Money is the Best Medicine (20): Earn cash, not health, for every heart in an act.
My Horse, A Gun, Your Lumberjack (20): Find a place to saw some logs.
No Country for Old Barons (20): Carjack a stagecoach.
No Insurance (15): Don't scratch the paint while piloting a paddleboat.
Once Upon a Time in the West (20): End an artist's career.
Perfect Performance (25): Win gold medals in all acts of a single play.
Perfectionist (30): Win a gold medal in every act of every play.
Pistol for a Hundred Skeletons (20): Kill 18,675,309,000 Skeletons.
Requiem for a Gunstringer (20): Walk amongst the dead.
Russian Chicken (10): In a shootout, play chicken with a bullet before shooting it.
Sellout (10): Buy an achievement from the bonus store.
Seven Shooter (5): Defy laws of physics by shooting more than six enemies without reloading.
Stranger in New Orleans (20): Take Andrew Jackson to the Madam's district.
Strings of Steel (50): Beat every play in one session. On Hardcore Mode. Also, never die.
The Backwards Bandit (20): Complete a level with "Lefty Mode" enabled.
The Bandit Sheriff (20): Close your bank account.
The Big Easy Reckoning (30): Get close and personal with the Madam.
The Brute and the Beast (20): See things that you will never be able to unsee.
The Canyon Runs Red (20): Fall thousands of feet without dying.
The Great Wall of Vengeance (20): Ride a rocket over a battlefield.
The Gunstringer Rides Again (15): Destroy the advertising plan of a small business.
The Hidden Fortress (20): Crash into someone's house uninvited.
The Last Undead Boy Scout (20): Collect a gold medal, hardcore award, and 2P award in a single act.
The Lone Star (20): Finish an act while playing on Hardcore Mode.
The Red Baron (25): Kill 100 enemies while strapped to a rocket in "The Great Wall of Vengeance".
Tin Marksman (5): Shoot all the cans in the Prologue.
Took a Bullet for the Team (10): Take down the developers.
Turbo Deflation (10): Deflate the first boss in under 30 seconds.
Two Hearts to Live (20): Complete all acts in a play without ever dropping to one heart.
Undead and Untouchable (20): Reach the end of "Requiem for a Gunstringer" without losing a single heart.
Undead or Alive (20): Remember the time you scorned a woman.
What's Next? (5): Visit the Download Content screen to see what new content is available.
Why Would You Even Do This? (25): Complete an act with every single modifier enabled.
With a Little Help from a Friend (15): Complete an act with a friend.
Achievements: Real Big Shootin' DLC
Real Best Friendin' (25): Beat a friend in 2 Player mode.
Real Big Completin' (25): Completed every unique round in Real Big Shootin'.
Real Big Scorin' (25): Earned a Real Big Score.
Real Big Shootin' (25): FINALLY shot a dog after a long series of shootouts.
Real Big Specialin' (25): Beat every type of special condition.
Real Big Spendin' (10): Made a real good purchase.
Real Duck Huntin' (20): Sliced 10 ducks with one shot.
Real Mad Dodgin' (50): Did some Real Big Shootin' without getting hit.
Real Rad Multiplicatin' (25): Did some Real Big Shootin' and got a Real Big Multiplier.
Real Wild Westin' (20): Killed 10 Jetpack Outlaws in one shot.