Star Wars: The Force Unleashed

This story related achievement is rewarded for completing the short, fifth level, Cloud City, as Starkiller. Completing this level will also unlock the Lightning Shield power. This level's boss is called the "Shadow Guard." Once this boss comes out of the starship, run back up the ramp you used to enter the final area and deal with all the other imperial enemies one by one. After they're all dead use force push to get the guard to the ground and unleash saber attacks while he's down. Rinse and repeat. If he's blocking your force push too much, get close and press ,,. Note that pushing the guard over the ledge does not kill him automatically.