Deadrock

Deadrocks are an enemy that appears in The Legend of Zelda: A Link to the Past. They are small creatures with a mild resemblance to the Goombas of the Mario series, but they have vestegial wings.

Deadrocks are found on Death Mountain. They move rapidly in straight lines, and do a fair amount of damage to Link. They get their name from their defense system - when attacked with most weapons, they turn into an invulnerable stone statue. After a brief time, the statue softens and the Deadrock resumes its attack. Deadrocks can only be killed by use of Magic Powder or the Quake spell. These don't actually kill the Deadrocks, but turn them into Slimes, which can be easily killed.