Magma Bombs, also known as Molten Rocks in Ocarina of Time, Magma Rocks in Twilight Princess, Flaming Boulders in Phantom Hourglass and Spirit Tracks, and Volcanic Rocks in Tri Force Heroes, are recurring hazards in The Legend of Zelda series.
Ocarina of Time
In Ocarina of Time, Molten Rocks fall from the sky during volcanic eruptions on Death Mountain when Link is a child. When this happens, the ground will tremble and Molten Rocks will descend shortly after. There are two types of Molten Rocks that will fall: a series of sporadically-placed rocks and Molten Rocks which will fall directly onto Link. These can be deflected by Link by using a Shield, should he be caught under a storm of Molten Rocks.
In Twilight Princess, Magma Rocks fall from the sky during Link's first visit to Death Mountain, including the Molten Shard. They can be avoided by looking at their shadows to see where they will land and by listening for the whistling sound they make as they approach the ground. Magma Rocks tend to explode when making contact with the ground. Once Link has quelled Fyrus' rage in the Goron Mines, the Magma Rocks will stop falling permanently.
In Spirit Tracks, when visiting the Fire Realm for the first time, Flaming Boulders fall around and on the Spirit Tracks. Link must use the Cannon in order to blast them out of the rails. When the hero arrives to the Goron Village, he finds out that several paths are blocked by the debris. Link must then get Mega Ice to the village in order to open these paths. On his way to the Fire Sanctuary, Link must avoid more Flaming Boulders.
Tri Force Heroes
In Tri Force Heroes, Volcanic Rocks only appear during the "Avoid the volcanic rocks!" Drablands Challenge in the Den of Flames and the Dragon Citadel. During this challenge, the Links must avoid the falling rocks while traversing through the level.
Breath of the Wild
In Breath of the Wild, Magma Bombs fall from Death Mountain and explode around the Eldin region. This is caused by the rampaging of the corrupted Divine Beast Vah Rudania. Due to the Magama Bombs, a rock slide seals the entrance to the vault where Bludo's painkillers are kept, trapping Yunobo inside. Once Rudania is freed from Ganon's corruption, the Magma Bombs stop.
- "I came to get some painkillers for Boss, but a magma bomb caused a rock slide, sealing the entrance, goro." — Yunobo (Breath of the Wild)
- "Molten rocks fall from the sky in waves." (Ocarina of Time 3D Official Game Guide (Prima Games), pg. 69)
- "Watch out for the falling magma rocks, though!" (Twilight Princess Official Game Guide (Prima Games), pg. 123)
- "Huge, flaming boulders start flying out of the volcano's cone, shooting skyward and then tumbling back down with explosive results." (Phantom Hourglass Official Game Guide (Prima Games), pg. 61)
- "Flaming boulders rain down everywhere as you delve into this foreboding." (Spirit Tracks Official Game Guide (Prima Games), pg. 190)
- "Avoid the volcanic rocks!" — N/A (Tri Force Heroes)
- "With Rudania runnin' wild recently, Death Mountain's eruptions have gotten real bad." — Bludo (Breath of the Wild)
- "Hey, buddy. Have ya heard? Rudania has stopped stirrin' up trouble, and the magma bombs have stopped too!" — Tray (Breath of the Wild)