How do you beat the third version of Vaati?

Ok...
Phase 1:You will see Vaati's arms moving about. When you see on go through the floor and pop up somewhere else, hit it with the Cane of Pacci, then enter it after shrinking to a Minish.

You will see a bunch of eyes moving around. One will have an eye that is a little redder than the others.

Attack it til it disappears. The exit and repeat for second arm (you will need the Flame lantern for it). Phase one is over
Phase 2: His other 4 eyes will move out. He will shoot lightning out at you, and then his eyes will glow.

Multiply to 4, and then align yourself with them, cause they will shoot out balls of energy. Swing your sword to deflect them (it could take some time,cause it is hard).After a few tries, you will win.

Good Luck!

Wait untill he makes his hand come up from the ground then shoot it with a blast of cane of pacci(i havent played this for a while so spelling might be bad) then transform into minish mode then go into it. Immediatley use hurricane spin and when it explodes run out. Do it again on the other arm and then charge up your sword and release it when the eyes charge a beam at you. Use the 4 links to hit the beams into the eyes. Rinse, lather, and repeat untill he dies.