Thunderbird

The Thunderbird (ボルバ, Boruba) is the second to last boss in The Adventure of Link. In order to defeat it, Link must first cast the Thunder Spell in order to expose the boss's weak point, the face. Thunderbird's only attack is throwing fireballs down at Link. The more Thunderbird gets hit, the more fireballs he will throw while increasing his speed.

After defeating the Thunderbird, Link will proceed to battle Dark Link.