Kind of an easy final boss really. Just run around, don't get in front of him, and whenever he smashes the ground, stand still! That lessens your chance of being hit by a rock. With reflect hammers, you can get him near a wall and smash him doubly. His sound effects are deafening, crunchy, and horribly clipped. I think they work great! He couldn't sound much scarier! I pretty much cranked every dial in my sound editing program to the max, figuring this was the final boss and all.