Ghost (Game & Watch Zelda)

are enemies that appear in.

Characteristics
Ghosts appear in certain ordinary chambers. They cannot be defeated and do not disappear until the floor's Goblin is defeated. Ghosts shoot arrows at Link from behind; these arrows can be blocked by holding Link's Shield behind him, which is done by holding down the attack button.

Trivia

 * Ghosts resemble the artwork of Ghinis from, and may have been directly based on them.