Ninja Gaiden 3 Prima Official eGuide is a digital web access guide and includes:

• Complete single player walkthrough and strategies to help you defeat the mysterious man behind the mask.
• Detailed maps showing the locations of enemy encounters. 
• Information on Ninpo and Ultimate Techniques to take on all comers. 
• Expert boss strategies for various modes.
• Art gallery showing the early concepts of gameplay design.
• Behind-the-scenes interviews with the development team on their thoughts throughout the production process.
• Covers both PS3 and Xbox 360.