This game is based on the movie Star Wars: Episode III.
You will successively control Anakin, Obi-Wan, Mace Windu and Yoda across a 12 levels game taking place in various environments from the film (Trade Federation Cruiser, Kashyyyk, Mustafar, Utapau and Coruscant).
You will face 10 types of enemies and 4 types of bosses including General Grievous, Count Dooku and the Emperor.
The game is a beat them all where you will have to destroy enemies in front of you to reach the end of the levels to either complete the task given to you (like escaping Kashyyyk using a ship) or defeat the boss at the end of the level.
You can use your light saber to kill enemies. After a certain number of victories against smaller enemies, your Force Gauge will increase and you will be able to use it to freeze enemies.