Successfully complete the game on any difficulty to unlock multiple categories of options at the "Bonus" menu that can be purchased with the points earned during the game. The points are earned by collecting treasures and journal entries as well as completing optional conversations. The available categories are: "Character Gallery", "Character Skins", "Concept Art", "Equipable Weapons" (including the Barok .44 revolver, which almost always kills with one-hit), "Gameplay Modifiers" (including infinite ammo and slow motion), and "Render Modes". Note: Using weapon and gameplay modifier/cheat options do not disable earning any trophies.