Unlock the hidden "Episode IV: A New Hope" level and play until you reach the first split in the path. Battle through the rebel guards down the right hallway and enter the door. There you should find a group of yellow, blue, green, and red blocks laying scattered on the floor. Using a Jedi or Sith, utilize the Force so that you build an "L" with the yellow blocks, an "E" with the blue blocks, a "G" with the green blocks, and an "O" with the red blocks. If done correctly, at least a dozen blue studs (worth 1,000 each) will fall from the ceiling. Collect as many as you can before they fade away.