Gerune

Gerunes are large living sand piles found as enemies in The Legend of Zelda: Spirit Tracks, appearing in the Sand Temple. They slowly shuffle after Link before rearing up to headbutt him. Prior to obtaining the Sand Wand, they are absolutely invincible, though only a pair is encountered. Once it is obtained, the same pair are encountered as a miniboss on the return trip. To defeat them, Link must put the wand's point of influence over the Gerune, which causes them to stiffen. However, they rapidly flee when this begins to happen, so the player needs to keep it moving onto them. Eventually they will become fully immobile and shoot upwards with a low beeping-like noise, turning brown. From here, the player may directly attack them to cause them to gradually flake away. Additionally, he can pick them up in this state, which is required for a switch puzzle in the temple. Throwing them or setting them down also causes them to flake away a bit; hitting the ground after being lifted a third time causes them to crumble.