*Spoiler*
Guitarguy, in order to get Force Crush you need to be evil on your second mandatory visit to Dantooine where you meet with the councill, I'm not sure if you HAVE to have killed some b4 then but if you kill them there Kreia will ask you questions, zap you then you'll get Force crush, makes fighting single enemies ridiculously easy since there is no real save against it, only damage reduction and you can keep using it even while they are down...they prob. should have put a cooldown.