Bomb

Ever since the first Zelda game, Link has been privvy to the use of explosive balls, named simply Bombs. Kept in the Bomb Bag, and made from Bomb Flowers, by the Goron tribe, these devices will help Link demolish boulders and kill giant bosses, amoungst other things.

The Legend of Zelda

The Legend of Zelda: Link's Awakening

The Legend of Zelda: Ocarina of Time

The Legend of Zelda: The Wind Waker