A reliable source for a 100% completed save file for the North American version is . Their "The Amazing Spider-Man – Nintendo WII Save Game" is a popular choice. It includes a completed game with a few extras already unlocked. Other options may be found on sites like GameFAQs or specialized forums.
How to Manage, Back Up, and Install The Amazing Spider-Man Wii Save Data the amazing spider man wii save data
: The game lacks a pause-menu manual save feature. You must see the spider-shaped autosave icon in the corner of your screen before turning off the console. A reliable source for a 100% completed save
Completing side quests or random events in the open world. Other options may be found on sites like
To back up or modify your save, you first need to find it. The Wii does not store saves on the game disc; they live in internal NAND flash memory or on an SD card.