Need help with sigma palace!(part 2-4)

If you're still around, and if you're talking about the fianl boss with Sigma's head in the robot then I'm here to help.

My plan is to jump onto either the left or right side (for some reason I always choose the left side) Whenever he doesn't use his electric bolt attack jump onto the hand and use the rolling shield on his sorry ass. Stay on the wall and just let yourself fall if you touch the ground unless you're sure it's safe as you'll probably jump right into his attack.His flamethrower is easy too if you stick to the wall. Lastly when he uses his laser blast attack hide underneath one of the hands and as soon as the laser that was on the hand leaves jump onto it and use the rolling shield, as he is vulnerable until all of the lasers are gone.