The Legend of Zelda/Bosses

Aquamentus
Boss of Level One. Dragon that shoots fireballs which can be blocked by the Magical Shield. Vulnerable to the Sword.

Digdogger
Sea urchin boss. Appears as a large yellowish circle with an eye in the middle. Blowing the Recorder will cause Digdogger to split into three smaller parts which can be defeated with the Sword.

Dodongo
Slow-moving dinosaur boss. Often appears in groups. Vulnerable to the Bomb. Most effective tactic is for Link to place the bomb directly into Dodongo's mouth. Each Dodongo should be defeated after Link places a bomb in its mouth twice.

Ganon
End boss. Capable of becoming invisible and moving around the room. Vulnerable to the Magical Sword and Silver Arrow. Both items are necessary to defeat Ganon.

Gleeok
Recurring underworld boss. Dragon with two, three or four heads. The heads will fly around the room after Link severs them, stopping only when the boss is defeated.

Gohma
Crab monster boss. It has a large central eye that opens and closes and is its only weak spot. Vulnerable to the Arrow.

Manhandla
Four-armed plant boss. Moves slowly at first, and then more quickly as it loses arms. Vulnerable to the Sword. It is possible for one well-placed bomb to defeat this boss in a single stroke. A less direct hit will at least sever one or more arms.