Great Moblin's Keep

In The Legend of Zelda: Oracle of Ages and The Legend of Zelda: Oracle of Seasons, Link finds a Moblin Keep. This is basically a small cave-like area inhabited by Moblins. Upon getting to the end, Link must defeat the Great Moblin in a boss battle. In Oracle of Seasons, if Link walks by without entering, the Great Moblin starts firing large bombs at him.