Zelda Encyclopedia : O

Oath to Order
Category - Ocarina Song
About - The Oath to Order was an Ocarina Song learned in Majora's Mask. It is played to call upon the 4 giants to save the Moon from falling into Termina.

Octoballoon
Category - Enemy
About - This guy was seen in A Link to the Past. It is a small round creature that will explode upon contact and after a set amount of time, releasing smaller spores.

Octorok
Category - Enemy
About - Octoroks are a common enemy. These water dwelling creatures will emerge from the waters to fire rocks through their snouts, which can be deflected by most shields.

Odolwa
Category - Boss / Enemy
About - Odolwa was the boss of Woodfall Temple in Majora's Mask. He is a large masked jungle warrior, but not very diffecult.

Onox ( General )
Category - Boss / Enemy
About - General Onox is a boss in the Oracle of Seasons. He is responsible for the capture of Din.

Outset Island
Category - Place / Village
About - Outset Island is the small island Link was born on, in the Wind Waker. It is a peaceful village, where many people live, including a great fairy.