Ninja Gaiden Sigma 2 Cheats

Learned The Art of Wind Blades (Bronze): Successfully Perform The Art of the Wind Blades Ninpo
Learned The Counter Attack (Bronze): Successfully Perform The Counter Attack Technique
Learned The Flying Bird Flip (Bronze): Successfully Perform The Flying Bird Flip Technique
Learned The Flying Swallow (Bronze): Successfully Perform The Flying Swallow Technique
Learned The Furious Wind (Bronze): Successfully Perform The Furious Wind Technique
Learned The Guillotine Throw (Bronze): Successfully Perform The Guillotine Throw Technique
Learned The Invisible Path (Bronze): Successfully Perform The Invisible Path Technique
Learned The Izuna Drop (Bronze): Successfully Perform The Izuna Drop Technique
Learned The Obliteration Technique (Bronze): Successfully Perform Obliteration Technique
Learned The Reverse Wind (Bronze): Successfully Perform The Reverse Wind Technique
Learned The Ultimate Guidance (Bronze): Successfully Perform The Ultimate Guidance Technique
Learned The Ultimate Technique (Bronze): Successfully Perform The Ultimate Technique
Learned The Unrivaled Soaring (Bronze): Successfully Perform The Unrivaled Soaring Technique
Lunar Staff Master (Bronze): Defeat 1000 Enemies With The Lunar Staff
Master Of The Secret Arts (Platinum): Obtain all trophies.
Rescued 100 ninja. (Bronze): Rescue 100 People In Need
Tonfa Master (Bronze): Defeat 1000 Enemies With The Tonfa
Ultimate Ninpo Master (Bronze): Chant 100 Ultimate Ninpo Spells
Vigoorian Flail Master (Bronze): Defeat 1000 Enemies With The Vigoorian Flail

Special Costume Unlockables
Ayane Costume - Ninja Gaiden Sigma: Clear story mode once on Warrior or Master Ninja Difficulty
Ayane Costume - Son Shoykou: Clear 20 missions on Team Mission Mode
Hayabusa Costume - Choun Shiyru: Clear story mode on Acoloyte difficulty
Hayabusa Costume - Classic Ninja: Clear 10 missions on Team Mission Mode
Hayabusa Costume - Devil Hayabusa: Clear story mode once on Warrior or Master Ninja difficulty
Hayabusa Costume - Ninja Golden Sigma: Achieve Master Ninja ranking on 10 cha pters in Chapter mission Mode
Momiji Costume - Sanzo Houshi: Achieve Master Ninja ranking for 30 chapters in Chapter Challenge mode
Momiji Costume - Training: Clear story mode once on Warrior or Master Ninja difficulty
Rachel Costumes - Chosen: Clear story mode once on Master difficulty
Rachel Costumes - Cutie Long Hair: Clear story mode once on Acolyte or Warrior difficulty
Rachel Costumes - Short Wolf Hair: Clear story mode once on Acolyte or Warrior difficulty
Rachel Costumes - Sweet Curl Hair: Clear story mode once on Acolyte or Warrior difficulty

Extra Costumes
Beating certain difficulties and meeting other requirements unlock these outfits for selection in single player and team missions.

Assassin Rachel (Short Hair): Beat the game on Acolyte or Warrior
Classic Hayabusa (Ryuken): Beat 10 Team Missions
Cutie Rachel (Long Hair): Beat the game on Acolyte or Warrior
Devil Hayabusa (Fiend): Beat the game on Acolyte or Warrior
Dragon Clone Hayabusa (Sigma 1): Earn Master Ninja on 10 Chapter Challenges
Dragon Sword Momiji (Training): Beat the game on Acolyte or Warrior
Dynasty Warriors Ayane (Son Shokou): Beat 20 Team Missions
Dynasty Warriors Hayabusa (Choun Shiryu): Beat the game on Mentor
Dynasty Warriors Momiji (Sanzo Houshi): Earn Master Ninja on 30 Chapter Challenges
Dynasty Warriors Rachel (Chosen): Beat the game on Mentor
Sigma 1 Ayane (Hooded): Beat the game on Acolyte or Warrior
Sweet Rachel (Curls): Beat the game on Acolyte or Warrior

Unlocking Team Mission Mode
To unlock Team Mission Mode just complete the 1st Mission on Story Mode any difficulty level.

Team Mission Mode: Beat First Mission on Story Mode

Chapter Challenge Mode
Beat the game on any difficulty to unlock Chapter Challenge mode.

Golden Health Bar
Beat the game on Master Ninja.

Health Bars

Golden Health Bar: Beat the game on Master Ninja

Unlock Master Ninja Mode
Beat the game on Mentor Mode.

Unlock Mentor Mode
Beat the game on Acolyte, or Warrior Mode.

Music Test
Beat the game once on any difficulty to unlock the Music Test in the Options menu.