Unlockable Ninja Suits and Extras
| Black Jaguar Costume | Complete Path of Mentor |
| Camoflauge Ninja Suit |
Complete the game on Warrior |
| Gamerpic. | Collect all 30 crystal skulls |
| Music Test | Clear the game on any difficulty |
| Old Film Filter | Beat the game. |
| Red Ninja Suit | Complete the game on Acolyte |
The Silver Xbox
In the bottom of the Statue of Liberty across from the Test of Valor, there is a bamboo curtain you have to slice through. Inside of it there is a Silver 360 that will heal you. You can use it as many times as you like. It also makes a sound from the 360's start up.
New Game +
To unlock New Game + you must beat the game, watch the ending credits and save your game.
New Game + let's you begin play on the same difficulty level you completed with all the items from the previous game at their current level.
Achievements
| Dragon Sword Master (5) | Complete the game using only the Dragon Sword |
| Dual Katana Master (5) | Complete the game using only the Dragons Claw and Tigers Fang |
| Eclipse Scythe Master (5) | Complete the game using only the Eclipse Scythe |
| Falcon's Talons Master (5) | Complete the game using only the Falcon's Talons |
| Feat of a hundred Slashes (20) | Achieve a 100-hit combo with any weapon |
| Feat of a Thousand Obliterations (20) | Defeat 1000 enemies using Obliteration Techniques |
| Feat of Ultimate Destruction (20) | Defeat 1000 enemies using Ultimate Techniques |
| Karma of the Master Ninja (20) | Obtain all of the Crystal Skulls |
| Karma of the Mentor (20) | Obtain 20 Crystal Skulls |
| Karma of the Warrior (20) | Obtain 10 Crystal Skully |
| Kusari-gama Master (5) | Complete the game using only the Kusari-gama |
| Lunar Staff Master (5) | Complete the game using only the Lunar Staff |
| Mastered Counter Attack (5) | Successfully performed the Counter Attack Technique |
| Mastered Flying Bird Flip (5) | Successfully performed the Flying Bird Flip Technique |
| Mastered Flying Swallow (5) | Successfully performed the Flying Swallow Technique |
| Mastered Furious Wind (5) | Successfully performed the Furious Wind Technique |
| Mastered Invisible Path (5) | Successfully performed the Invisible Path Technique |
| Mastered Obliteration Technique (5) | Successfully performed the Obliteration Technique |
| Mastered Reverse Wind (5) | Successfully performed the Revers Wind Technique |
| Mastered Shadowless Footsteps (5) | Successfully performed the Shadowless Footsteps Technique |
| Mastered Ultimate Guidance (5) | Successfully performed the Ultimate Guidance Technique |
| Mastered Ultimate Technique (5) | Successfully performed the Ultimate Technique |
| Mastered Unrivaled Soaring (5) | Successfully performed the Ultimate Soaring Technique |
| The Art Of Inferno (5) | Successfully performed the Art of the Inferno Ninpo |
| The Art of the Flame Phoenix (5) | Successfully performed the Art of the Flame Phoenix Ninpo |
| The Art of the Piercing Void (5) | Successfully performed the Art of the Piercing Void Ninpo |
| The Art of the Wind Blades (5) | Successfully performed the Art of the Wind Blades Ninpo |
| Tonfa Master (5) | Complete the game using only the Tonfa |
| Vanquished Alexei (15) | Defeat Alexei in battle |
| Vanquished Elizébet (15) | Defeat Elizébet in battle |
| Vanquished Genshin (15) | Defeat Genshin in battle |
| Vanquished Volf (15) | Defeat Volf in battle |
| Vanquished Zedonius (15) | Defeat Zedonius in battle |
| Vigoorian Flail Master (5) | Complete the game using only the Vigoorian Flail |
| Way of the Acolyte (100) | Complete the game on the Path of the Acolyte |
| Way of the Master Ninja (100) | Complete the game on the Path of the Master Ninja |
| Way of the Mentor (100) | Complete the game on the Path of the Mentor |
| Way of the Warrior (100) | Complete the game on the Path of the Warrior |