This tutorial will teach how to mod Sonic Unleashed.
I will show how to edit your amount of 'Coins' and 'Camera Flash'.
1) Open your save in any hex editor.
2) To edit your 'Coins' go to offset : 0x15F3C - 0x15F3F (4 Bytes).
Max = 999999 (hex = 000F423F).
3) To edit your amount of 'Camera Flash' go to offset : 0x15F43 and 0x15F47 (1 Byte each).
There are 2 locations because there are 2 values, example: 99 / 99.
Max = 99 (hex = 63).
4) After editing, save the file.
5) Rehash file.
Credit Goes to JizzaBeez