Collect the hidden Pivots throughout the game to unlock the following cheats under the options menu.

Infinite Ammunition: Infinite pistol ammo and arrows
Killing Spree: Allowed to assassinate enemies while not in stealth mode
Made Of Steel: Invincibility
Ninja: Enemy AI disabled; enemies will not see or hear you
Recruit: Infinite recruit tokens
Season Changer: Toggle seasons between summer and winter
Semi-Automatic: Ranged weapons have no reload time between shots
Sun And Moon: Toggle between day and night
Thunder Kill: Thunder and lightning after each kill
Weather Man: Set current weather conditions