There are nine bonus weapons you can unlock in Deadliest Warrior: Legends for the PS3 and Xbox 360. Here is the list of unlockable bonus weapons, and what you need to do in order to unlock them.
Farmer’s Pitch Fork – Kill 25 enemies in Survival Slice mode with Vlad The Impaler
Hand Fan – Kill 25 enemies in Survival Slice mode with Sun Tzu
Koi – Kill 25 enemies in Survival Slice mode with Genghis Khan
Mid Range Weapon – Beat the Slice Challenge in Arcade mode
Projectile Weapon – Beat Arcade mode
Short Range Weapon – Defeat the Navy SEAL in the first challenge in Arcade mode
Toy Scythe – Kill 25 enemies in Survival Slice mode with Hernan Cortes
Tribal Flute – Kill 25 enemies in Survival Slice mode with Shaka Zulu
Wooden Spoon – Kill 25 enemies in Survival Slice mode with Hannibal