CP3S said:

So, I've never seen more than a couple of episodes of the Clone Wars series that Lego Star Wars III is based on, so as I played through the game I kind of had to guess the storyline, but there were several levels where I was killing endless hoards of zombies that would come up out of the ground. Maybe they weren't really zombies, but translated into Lego, they were just as zombies.

iirc it was a parasite but essentially it's victims became zombies. It was kinda strange for Star Wars..