Lightsabers don't work in video games. They're a terrible game mechanic. In the films and fiction, they're one hit kills, but in the video games they are nothing more than glowing swords. Why they keep trying to make them work is beyond stupid.
It's like Superman - playing superman in a video game is boring, unless every single enemy is made of krypton. The last Superman game had a great idea - give the city a health bar. That was actually a stroke of genius. Too bad the game sucked.