I recently completed this game 100% and am sharing my save. I've collected and unlocked absolutely everything (canisters, skins, gallery, upgrades) here; all that's left is to replay missions and minigames.

Installation instructions:

Install the file.
Go to the "My Documents" folder.
Find the "The Incredible Hulk" folder.
Copy the downloaded file to the folder from step 3 and confirm the file overwrite.

Author: Harry Osborn