The Legend of Zelda: Oracle of Ages is the time-themed counterpart to Oracle of Seasons. In it, the Oracle of Ages, Nayru, is possessed by Veran, Sorceress of Shadows. Link must travel throughout Labrynna's past and present to collect the 8 Essences of Time, power up the Harp of Ages, and defeat Veran.
You can watch the complete run played back on console.