Ninja Gaiden Sigma cheats and cheat codes for Playstation 3

Unlock 5 Bonus missions that are include in the Collector's Edition:
Press Up, Down, Left, Down, Right, Up, Square at the Mission mode screen.

Unlock Mission mode 
Finish Story mode on the Normal difficulty level.

Unlock Ashtar Ryu costume 
Finish Story mode on the Hard difficulty level.

Unlock Classic Ryuken costume 
Finish Story mode on the Normal difficulty level.

Unlock Hard mode 
Finish Story mode on the Normal difficulty level.

Unlock Very Hard mode 
Finish Story mode on the Hard difficulty level.

Unlock Master Ninja mode 
Finish Story mode on the Very Hard difficulty level.

Unlock Ninja Dog mode 
Intentionally die 3 times in a row. When Ayane asks 
"Do you really give up the way of Shinobi?". Select "Yes" as answer.


Items and weapons 
The Armlet Of Celerity: Give 25 Golden Scarabs to Muramasa at the shop
The Armlet Of Benediction: Give 30 Golden Scarabs to Muramasa at the shop 
Spirit Of The Devils: Give 15 Golden Scarabs to Muramasa at the shop 
Plasma Saber MkII: Give 50 Golden Scarabs to Muramasa at the shop 
Lives Of The Thousand Gods: Give 10 Golden Scarabs to Muramasa at the shop 
Life Of Gods: Give 1 Golden Scarab to Muramasa at the shop 
Jewel Of The Demon Seal: Give 45 Golden Scarabs to Muramasa at the shop 
Great Spirit Elixir: Give 35 Golden Scarabs to Muramasa at the shop 
Dabilahro: Give 20 Golden Scarabs to Muramasa at the shop 
Armlet Of Potency: Give 5 Golden Scarabs to Muramasa at the shop 
Armlet Of Fortune: Give 40 Golden Scarabs to Muramasa at the shop