Wallmaster (The Legend of Zelda)

Wallmasters, originally parsed Wall Masters, are blue hand enemies found in the labyrinths of The Legend of Zelda for the Nintendo Entertainment System. While later games additionally include hands known as Wallmasters in English, in the original Japanese, the later ones are differentiated as "Fall Masters."

The Legend of Zelda
In The Legend of Zelda, Wall Masters are first found in the room before Aquamentus in the Eagle labyrinth. Wall Masters attack by slowly emerging from walls and traveling along the floor, grabbing Link if they touch him, before sending him back to the entrance of the dungeon. In prototype sprites, they lack the spots on their backs.

The Legend of Zelda: Ocarina of Time
An early prototype screenshot for The Legend of Zelda: Ocarina of Time shows Link encountering what appears to be one of these Wall Masters, notably only having four fingers instead of five like in their original appearance. However, in the final, they are instead replaced by the enemy from The Legend of Zelda: A Link to the Past, which has since become a series mainstay.

Nintendo Comics System
A Wall Master appears in one story of Nintendo Comics System, where Link pushes Princess Zelda into one so she can escape danger.

CD-i games
Wall Masters appear in the Philips CD-i games, Link: The Faces of Evil and Zelda: The Wand of Gamelon. In these appearances, they remain clenched in one spot in the background and will grab Link or Zelda and drain their health if they approach. They can be defeated with a bomb or sufficient sword slashes in the former game, but are invincible in the latter. The latter game also has a smaller variant that waits open on walls, punching Zelda when she gets close. This type is invincible.

BS Zelda no Densetsu
In BS Zelda no Densetsu, Wall Masters appear as they do in the original game, though their palms now face the screen. Additionally, a group of green-colored ones appear in Level-8, with a nearby old man saying they can help the player find the Silver Arrows. This is actually a subtle way of indicating the passage to the arrow is hidden in the first room of the dungeon.

Cadence of Hyrule: Crypt of the NecroDancer featuring The Legend of Zelda
Original Wallmasters return in Cadence of Hyrule: Crypt of the NecroDancer featuring The Legend of Zelda. In this game, they are tan and have an eye at the back of the hand. They reside in certain walls and peek out of it at intervals. If they see the player character a space away, they will give chase. If they catch up to the character and are not fought back, they will take the character to another room and cause damage.