Website and research by 101Leafy.

Stal

For The Legend of Zelda: A Link to the Past on the Super Nintendo (SNES).

From the official guides

Some of the skull-shaped rocks in the Dark World suddenly come to life when Link tries to lift them. Once one moves, it charges straight at Link by the shortest way.

ファミコン通信編集部責任編集 ゼルダの伝説 神々のトライフォースのすべてがわかる本 (アスキー, 1992), p. 103, translated by 101Leafy

A Dark World rock. Touch some of them and they flash and start to move. This is that rock. When it flashes, swing the sword. That should beat it easily.

任天堂公式ガイドブック ゼルダの伝説 神々のトライフォース 上巻 (小学館, 1992), p. 128, translated by 101Leafy

Numbers

Hit points4
Damage to Link, Green Mail1 heart
Damage to Link, Blue Mail½ heart
Damage to Link, Red Mail¼ heart

Weapons

Boomerang4 hits
Fighter's Sword2 hits
Master Sword1 hit
Tempered Sword1 hit
Golden Sword1 hit
Golden Sword spin attack1 hit
Arrows1 hit
Hook ShotStuns it
Bombs1 hit
Silver ArrowsDefeats it in one hit
Magic PowderTurns it into a slime
Fire Rod1 hit
Ice Rod1 hit
Bombos Medallion1 hit
Ether Medallion1 hit
Quake MedallionTurns it into a slime

Drops

It drops something 50% of the time. The drops come in this order, then start over:

  1. Heart
  2. Heart
  3. Heart
  4. Heart
  5. Green Rupee
  6. Heart
  7. Heart
  8. Green Rupee

Names

EnglishStal
FrenchStal
GermanStal
Japaneseスタル