Player one God mode At the starting menu, press Up, X, Square, Circle, Triangle, Down. Note: This code has no effect online.
Player two God mode At the starting menu, press Down, Circle, Square, X, Triangle, Up. Note: This code has no effect online.
Slice mode At the starting menu, press L2, Square, X, Square, X, R2. In this mode, all strikes to cause dismemberment. Note: This code has no effect online.
Sudden Death mode At the starting menu, press Square, R1, Up, Down, L1, X. In this mode, all warriors start the round with critical health. Note: This code has no effect online.
Zombie mode At the starting menu, press Triangle, X(3), Square, Circle. Note: This code has no effect online.
Challenge mode Successfully complete Arcade mode with all characters to unlock Challenge mode.
Lab area Defeat ten opponents in Survival mode to unlock the Lab area. Alternately, successfully complete Arcade mode with all characters on the Deadliest difficulty.
Long range weapon Successfully complete Arcade mode.
Mid-range weapon Successfully complete Slice in Arcade mode.
Short-range weapon Successfully complete Target in Arcade mode.
Alternate costume Defeat your warrior in Arcade mode.
Easy "A Head Of The Competition" trophy Play as the samurai. Instead of needing a lucky strike, your special move slices the enemy's head off. It is recommended that you do this against a guerrilla unit, such as the ninja or apache.
Easy "Black Knight" trophy Play as the pirate, and throw the bombs. There is a 50% chance that it will blow off all the limbs.
Easy "On Death's Door" trophy Have a friend play as the pirate. Have the pirate throw two bombs at you, and both your arm and leg will be broken. Then, kill the pirate to get the "On Death's Door" trophy.
Easy "Tournament To Kill" trophy Use the following trick to get easy victories. Play as either Apache or Ninja. Select the poison projectiles. Land at least one projectile on the enemy, then evade the enemy until time runs out.
Trophies Successfully complete one of the following tasks to get a trophy:
- A Head of the Competition (Bronze): Decapitate 100 enemy warriors as the primary player.
- Pin Cushion (Bronze): Stick 4 projectiles in a single opponent as the primary player.
- Against All Odds (Bronze): Defeat 25 warriors in Survival Mode as the primary player.
- Flesh Wound (Bronze): Perform a final strike on an opponent after your arm has been sliced off as the primary player.
- On Death's Door (Bronze): As the primary player, kill and opponent while at critical health, with your leg and arm injured.
- Right on Time (Bronze): Perform only perfectly timed strikes to defeat an enemy as the primary player.
- Shishkabob (Bronze): Remove an enemy's head with a projectile and stick it into a wall as the primary player.
- Who's Deadliest Now? (Bronze): Defeat Arcade mode on the Deadliest difficulty as the Ninja, the Viking, and the Knight.
- That Was Sparta! (Silver): Kill 300 Spartans as the primary player.
- Tournament to Kill (Silver): Win 10 online tournaments as the primary player.
- Black Knight (Silver): Remove all four limbs from the Knight during a single match as the primary player.
- Deadliest Arsenal (Gold): Unlock every weapon and armor available for every warrior as the primary player.
