Look dude, just run in a circular motion, while constantly shooting the red eye in the middle, DO NOT STOP ORBITING AROUND KRENN, contiue shooting, he will then come stomping up to you and try to pulvarize you with his leg, DO NOT STOP ORBITITNG, when he curls up into the ball to begin repairing, do not worry about killing the suicide droids, aim at the electric ball thingy on the repair arm, shoot it with the Fluxinator or whatever, you should dish out about 200 damage, 400 on Crtical, and when you hear it really reving up, it should almost be destroyed, but you have to hurry, or it will go back in, so when the life is low, get out a quicker weapon to finish it off. Just remember to ALWAYS orbit around KRENN and don't stop!