The Energon Pub

Alright, I have beaten the game as both the Autobots and Decepticons. All I have left to do is find all of the energon cubes and faction symbols. Quite frankly, I'm tired of looking for them.

I have the codes for Prime, Jazz, and Starscream. Where do I enter them?

Enter at the menu screen that has campaign and bonus feature: the screen will flash when the code is done right.