Magma Bombs,(BotW) also known as Volcanic Rocks,(TFH) are recurring hazards in The Legend of Zelda series. They go unnamed in Ocarina of Time, Twilight Princess, Phantom Hourglass, and Spirit Tracks.
Ocarina of Time
In Ocarina of Time, Magma Bombs fall from the sky during volcanic eruptions on Death Mountain when Link is a child. When this happens, the ground will tremble and Magma Bombs will descend shortly after. There are two types of Magma Bombs that will fall: a series of sporadically-placed rocks and Magma Bombs which will fall directly onto Link. These can be deflected by using any Shield.
In Twilight Princess, Magma Bombs 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 Bombs tend to explode when making contact with the ground. Once Link has quelled Fyrus's rage in the Goron Mines, the Magma Bombs will stop falling permanently.
In Spirit Tracks, when visiting the Fire Realm for the first time, Magma Bombs fall around and on the Spirit Track. Link must use the Cannon in order to blast them out of the rails. When Link arrives to 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 Magma Bombs.
Cragma, the boss of the Fire Temple, also uses Magma Bombs as one of its attacks.
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. This is caused by the rampaging of the corrupted Divine Beast Vah Rudania. Due to the Magma Bombs, a rock slide seals the entrance to the vault where Bludo's painkillers are kept, trapping Yunobo inside. Once Rudania is freed from Calamity Ganon's corruption, the Magma Bombs stop.
- "Hey, buddy. Have ya heard? Rudania has stopped stirrin' up trouble, and the magma bombs have stopped too!" — Tray (Breath of the Wild)
- The Legend of Zelda: Tri Force Heroes – Official Guide by Prima Games , pg. 195
- "With Rudania runnin' wild recently, Death Mountain's eruptions have gotten real bad." — Bludo (Breath of the Wild)
- "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)