Ninja Gaiden 3 Cheats - PlayStation 3

Unlock Trophies
Abysmal Creations (Bronze) - Escape from the Chimera Disposal Facility.
Advent of the Goddess (Bronze) - Finish Day 7.
Flying Bird Flip (Bronze) - Learn the Flying Bird Flip.
Guardian of the Village (Bronze) - Play the Hidden Village stage 10 times.
Hayabusa Style Grand Master (Bronze) - Reach level 50.
Hero (Silver) - Clear the game on Hero.
I Got Your Back (Bronze) - Play a Co-op Ninja Trial with a partner.
Inferno (Bronze) - Learn Ninpo.
Initiate (Bronze) - Clear 10 Acolyte Trials.
Ahab (Bronze) - Attack the Black Narwhal.
An Honorable Death (Bronze) - Perform harakiri.
Antediluvian Slumber (Bronze) - Finish Day 3.
Atonement (Bronze) - One more death to make amends.
Beyond the Flames (Bronze) - Make it through the fire.
Brothers (Bronze) - The sibling rivalry comes to an end.
Bumpy Ride (Bronze) - Finish Day 2.
Evil Twin (Bronze) - Defeat the Epigonos.
Falcon Dive (Bronze) - Learn the Falcon Dive.
Mind the Gap (Bronze) - Escape from the monorail.
Observer (Bronze) - Play the Watchtower stage 10 times.
One Against the World (Bronze) - Win a battle royale match.
Overlord (Silver) - Clear 5 Master Ninja Trials.
Prestige (Bronze) - Clear 5 Leader Trials.
Rope Crossing (Bronze) - Learn how to cross a rope.
Shady (Bronze) - Perform a betrayal.
Shinobi (Silver) - Clear the game on Normal.
Sliding (Bronze) - Learn how to slide.
Initiation (Bronze) - Play a Clan Battle.
Izuna Drop (Bronze) - Learn the Izuna Drop.
Kunai Climb (Bronze) - Learn the Kunai Climb.
Lone Ninja (Silver) - Clear 10 Solo Ninja Trials.
Master Ninja (Gold) - Clear the game on Master Ninja.
Master of the Katana (Bronze) - Raise the katana to level 10.
Master of the Secret Arts (Platinum) - Obtain all trophies.
Mentor (Silver) - Clear the game on Hard.
Sneaky (Bronze) - Perform a ghost kill.
Snowman (Bronze) - Play the Snowfield stage 10 times.
Steel on Bone (Bronze) - Cut down 100 enemies with Steel on Bone attacks.
Steel on Steel (Bronze) - Destroy the Steel Spider.
Teamwork (Bronze) - Win 10 team battles.
The Acolyte (Bronze) - Successfully clear the Sanji event in Hayabusa Village.
The Great Escape (Bronze) - Finish Day 4.
The Grip of Murder (Bronze) - Finish Day 1.
The Karma of a Shinobi (Bronze) - Finish Day 5.
The Spice of Life (Bronze) - Get 10 customization parts.
Ultimate Ninja (Gold) - Clear 3 Ultimate Ninja Trials.
Ultimate Technique (Bronze) - Learn the Ultimate Technique.
Veteran (Bronze) - Clear 10 Mentor Trials.
Waiting (Bronze) - Finish Day 6.
Walking Dictionary (Silver) - Get 100 kanji.
Wall Run (Bronze) - Learn the Wall Run.

Additionally, there are two Ninja Pack 1 trophies:

Bloodied Talons (Bronze) - Defeat 100 opponents in Clan Battles with the Metal Claws.
Warrior (Silver) - Clear all Ninja Trials included in Ninja Pack 1.

Unlock Master Ninja Difficulty
Beat the game on Hard to unlock the more brutal Master Ninja difficulty.