Boulder
The Boulder is an inanimate and undefeatable enemy found in a few The Legend of Zelda games. They usually fall from above onto Link to damage him.
Appearances
The Legend of Zelda
Boulders are found in the mountainous regions at the northern part of the Overworld Map. They tumble down Death Mountain, dealing a half heart of damage if they make contact with Link.
A Link to the Past
Boulders in A Link to the Past appear in an almost identical fashion as they did in The Legend of Zelda. They will appear exclusively in the mountainous region of Death Mountain. Often accompanied by Deadrock, boulders can be quite difficult to avoid without taking some damage.
Link's Awakening
These rocks can be found at the north-western part of Koholint Island, near the entrance to Turtle Rock. Boulders will fall from the top of the screen and bounce around the mountainous terrain. Avoiding these boulders is only challenging if Link is trying to climb a staircase. There is no way to defeat a boulder. It may be fastest to get hit on purpose and continue on Link's way, instead of trying to dodge them. Luckily, boulders only do half a heart of damage, so Link is not in danger of dying unless his hearts are very low.
Ocarina of Time
Oracle of Ages
"Boulders are more a trap rather than an enemy. Found on Restoration Wall near Symmetry City, they fall from holes at the top of the wall and try to hurt you when you are climbing it. They can be quite pesky, especially if you have lower heart levels. Just try to steer out of the way to avoid these boulders since you can't defeat them."
-Zelda Dungeon description
Gallery
Boulder Artwork from The Legend of Zelda
Boulder Sprite from The Legend of Zelda
Boulder Sprite from A Link to the Past.
Boulder Sprite from A Link to the Past.
Boulder Sprite from A Link to the Past.
Boulder Sprite from Link's Awakening
Boulder Sprite from Oracle of Ages