Complete the following achievements to unlock Xbox Live Gamerscore points.

It Begins With a Ring (50 points): Ring the mysterious bell. What happens after that, is up to you.
Do Not Shoot the Water! (50 points): Summon the master of the lake. Don't rock the boat.
A Rock and a Hard Place (50 points): Outmaneuver the rampaging beast, El Gigante.
Secure the Ballistics (50 points): Rescue the president's daughter, Ashley. Afterwards, the real fun begins.
A Bloodline Severed (50 points): Defeat the village chief in battle.
A Terrifying Assassin (150 points): Turn the tables on Verdugo, the right hand of Salazar.
The Castellan Falls (50 points): Defeat Salazar, and make your escape from the castle.
The Ties That Bind (50 points): Defeat Krauser, your former partner, in battle.
We're Going Home (100 points): Defeat Saddler in battle, and escape from the nightmare.
A Heart of Steel (150 points): Clear the game on the highest difficulty.
What Are They Worth? (150 points): Acquire all of the bottle caps in the game.
The S Stands for Stylish!! (100 points): Acquire all of the costumes in the game.