Stal

Stals, formerly known as Skull Rocks, are skull head enemies in The Legend of Zelda: A Link to the Past and The Legend of Zelda: A Link Between Worlds, appearing in the Dark World and in Lorule respectively. Stals have the same appearance as ordinary skulls which Link can pick up and throw. If Link approaches a Stal, it starts to hop toward him, similar to an Armos. Despite their size, Stals can deal a heart of damage to Link. They can be defeated by most weapons, notably the sword. Some Stals hide under grass and are revealed after Link slashes the grass.

In The Legend of Zelda: A Link to the Past, Link can turn a Skull Rock into a slime by sprinkling Magic Powder on it.