Tinsuit

Tinsuits are enemies from Zelda II: The Adventure of Link. They appear only in the palaces, where they charge mindlessly in one direction. Tinsuits change direction upon running into a wall, but will walk straight into pits. Certain corridors have infinitely respawning Tinsuits.

Tinsuits have wolf-like heads as depicted in official artwork, and they carry swords, but do not use them. Even early in the game, they do little damage to Link, but they deduct experience points if they hit him.

Because of their similar appearance to the boss Horsehead and the fact that their official name is not in the Zelda II instruction manual, they are frequently mistaken as "mini-horseheads".

Etymology
The name "Tinsuit" may have been derived from the two English words "tin" and "suit". The official artwork depicts them as wearing metal armor, suggesting that they may wear suits made of tin.