Wallmaster

Wallmasters, also called Wall Masters, can be found in many Zelda games but are most well-known in the game, Legend of Zelda: Ocarina of Time. It hangs from the ceiling and creates a shadow around Link that steadily grows until eventually, it drops and, if successful, grabs Link and thereby transports him back to the beginning of the dungeon. While pursuing the player, the Wallmaster emits an eerie sound which indicates that you should move and slash it when it lands and misses you. It is thought to be one of the more sinister enemies of the series.

NOTE:


 * To avoid confrontation entirely, switch to first-person view when the shadow initially appears and the Wallmaster should leave you alone. This is especially useful in Legend of Zelda: Ocarina of Time.
 * When the shadow enlarges, simply run around, and do not remain stationary. Run around until it drops, then slash it with your sword. It will be easier to keep slashing it until it dies, if you do not kill it, then it will jump to the ceiling once more, and you will have wasted time running around.
 * If there is a ladder nearby, quickly begin to climb it. The shadow may follow you, but you are safe.



Quote from The Legend of Zelda: The Minish Cap Wall Master figurine:

"Appears in dungeons. If these guys grab you, they'll send you back to the start of the dungeon. Dodge them as they fall, then attack."

In Twilight Princess
Within the Palace of Twilight are two Sols guarded by Zant's Hands, which are similar in appearance and movement to the Wallmaster, and have a simmilar effect;they seal the Sol orb, forcing you to head back to where you originally found them.