You must be signed into the PlayStation Network (PSN) to upload your file from one device and download it on another.

Installing a foreign save file on a standard PS3 is tricky due to digital signatures. If you just paste a save from the internet, the PS3 will say "Saved data is not yours" and lock trophies.

, particularly how they facilitate the game's unique functionality and preserve progress across a time-traveling heist adventure . The Mechanics of the Thievius Raccoonus

This game supports a dedicated cloud saving system that allows you to play on one console and resume on the other.

: All bottles found across every episode to unlock permanent character upgrades from safes. Arcade Machines

If you just want to mess around with all the costumes, abilities, and unlocked episodes, downloading a 100% save is the way to go.