Star Wars: The Force Unleashed Cheats

The way to get invincibility is to (when you get the chance)go ot the rouge shadow ship and got ot extras and type in these codes

Successfully complete the first mission. After gaining access to the Rogue Shadow, you will have the ability enable cheat codes. While on board your ship between missions, select "Extras", then the "Enter Code" option. Enter one of the following codes to activate the corresponding cheat function. Note: Enabling a code for a different costume may prevent some intermissions sequences from being viewed. The game cannot be saved when non-costume codes are enabled.