You must choose three troopers from the available stable, which grows with each successful mission - you only start with long shot and spread. Each of the troopers has a different battle specialty, whether it's long-range fire or a spread shot or a shield. There is a serious ribbon if strategy that runs through the proceedings, as you must choose which type of troopers to send into the conflict. Order 66 is more than a shooter, however. Thankfully, the Jedi put up a little more of a fight in the game than they do in the movie. Two or so screens deep into the battle with the droids, the Emperor comes over the air and issues the dreaded Order 66, and your boss battle is a showdown against one of the Jedi. You control a set of Republic Commandos engaged in battle with the Separatist's droid army. The fall of the Jedi, literally stabbed in the back by the clone troopers is such a downer, I really think THQ Wireless shows some huevos for actually casting the sequence into a mobile game.
'Execute Order 66.' The Emperor's curt delivery of this death sentence to the Jedi feeds into one of the few sequences in ' Revenge of the Sith' that has any degree of subtlety.