Hammer

The Hammer is a type of item in the The Legend of Zelda series. Its main purpose is to destroy obstacles, but it is also capable of defeating enemies. A Hammer first appears in Zelda II: The Adventure of Link.

Zelda II: The Adventure of Link
In Zelda II: The Adventure of Link, Link finds a Hammer at Spectacle Rock. It is one of only two items found outside dungeons, and the Hammer is used to destroy four boulders located around the overworld. It can also destroy forest tiles, and is used to find the Hidden Town of Kasuto.