This idea was cancelled and replaced with all new Ground Battles.
In the extras section, go to 'enter secret code'.
There was no real goal there, but players were able to collect studs (the base currency for Lego games) to unlock videos, revealing gameplay, and characters that would be playable on the official release. The game had a website, titled, Lego Star Wars III: The Clone Wars Beta, which was an online game that allowed you to get a first look at some of the game's elements and playable characters.
