A Link to the PastLink makes it to Death Mountain within the Light World. They move back and forth rapidly, with their primary form of attack being to simply run into Link. When they are first encountered, Deadrocks cannot be defeated by usual methods. Any attack from Link's Fighter's Sword causes the Deadrock to turn into a stunned statue momentarily. While in this form, Link cannot defeat the enemy, but it at least stops moving, allowing Link to move around it.
The only ways to defeat these creatures early on in the game is to turn them into Slime by sprinkling Magic Powder on them or using the Quake Medallion. Once turned into Slime, they can then be defeated by an assortment of weapons.
Four Swords Adventures
Deadrocks appear only in Death Mountain Foothills. Their behavior and abilities are the same as in their A Link to the Past incarnations, and they can either be destroyed by crushing them with the Moving House or with the Magic Hammer.
A Link Between Worlds
Deadrocks again appear in the Nintendo 3DS game A Link Between Worlds. Like their A Link to the Past brethren, Deadrocks are again found on the foothills of Death Mountain. Hitting them with Link's sword causes them to be stunned. After a while, they regain focus.