http://www.mgrrevengeancemod.blogspot.com/
On here you are going to find a detailed Tutorial on how to get our Metal Gear Rising Revengeance Xbox 360 Game Save Editor tool, and of course how to use it correctly. Please make sure to follow every Step of the Tutorial to make sure everything works fine.
http://www.mgrrevengeancemod.blogspot.com/
How to Use the Tool;
1. Extract the "GameData_00" file from your SaveData file
2. Open the GameData_00 file into the Editor
3. Mod what you want and press Save
4. Replace the GameData_00 file back into your SaveData file
5. Rehash/Resign
6. PLAY!!!