Dark Dragon

The Dark Dragon is the second (and final) form of Onox, and the final boss of Oracle of Seasons.

Strategy
To defeat this terrifying form, jump on top of his hands when he tries to crush you, then jump up with your Roc's Cape and slash at his face. To avoid his swipe attack, quickly run to the opposite side of the screen he's attacking from; Pegasus Seeds may come in handy here. For his blue fire attack, be sure to anticipate when he's going to use it, and move out of the way at the last possible second. For the red fire attack, just use Pegasus Seeds and dodge his blasts. After many slashes with your sword, he will finally be defeated. *Note: If you use the Power Ring L-3 and spin attack him, it will be much quicker. Getting the ring is another story...

Trivia

 * Dark Dragon is possibly one of the largest bosses Link has ever fought, along with Molgera, Morpheel, Eox and Twinmold.