How do you beat Star Wars the force unleashed

You have to get past all destinations and then go to the Death Star, break Darth Vader, and defeat Darth Hideous. It's easier if you enter "Cortosis", Lightsaber", and "Vergence". They will give you Invincibility, massive Lightsaber power, and Unlimited Force power. Defeat Darth Hideous, watch the senators create the Rebellion, and win the game. I beat it 4 times.