Dragon's Dominion is the sixth level of world 4, The Demon Realm. The level begins inside an active volcano, where the player must evade demons and the undead as they make their way across the lava, utilizing ancient pillars as climbing material. After making their way out of the volcano, they must then conquer an ancient castle, which focuses more on jumping across platforms and evading spiked walls.
At the end of the level is the Black Dragon, which attacks with fireballs and pillars of lava. It can only be harmed with projectiles, so a Fire Rod is provided in case the player can't naturally use them.