press the button you use to use the sword-to hit him-, and press it and hold to block his
2-sided sword[hint: if u press it 3 times,on the 3rd time use the control pad to spin
around(u still have to hold the button)]

u keep on fighting him with yr lightsaver.
then u get the r2-d2 to press the button.then
u keep on fighting him again then u will defet him.

first keep on using the lightsaber and give it a push and if he throws something at u use
force