How To: Unlock hidden missions in Ninja Gaiden Sigma

Unlock hidden missions in Ninja Gaiden Sigma

Want to crack Ninja Gaiden Sigma for the PS3? Let a hot chick help you! In the regular version of this game, you can unlock the five additional missions that come on the collector's edition. After you've solved the game, go to the mission mode screen and enter: Up, Down, Left, Down, Right, Up, Square.

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