Unlock Arcade Ninja Gaiden
Complete the game to unlock arcade Ninja Gaiden.
Unlock Movie Theatre
Complete the game to unlock the movie theatre.
Coming Attractions
Accumulate over an hour of gameplay.
Unlock Mission Mode
Complete the game using the normal or higher difficulty setting.
Unlock Ninja Dog Difficulty Setting
Die three times in a row during Chapter 1. When asked "Do you really give up the way of Shinobi?", answer "Yes".
Unlock Hard Difficulty Setting
Complete the game using either the Ninja Dog or normal difficulty setting.
Unlock Very Hard Difficulty Setting
Complete the game using the hard difficulty setting.
Unlock Master Ninja Difficulty Setting
Complete the game using the very hard difficulty setting.