Dual Dragon

The Dual Dragon is a boss in the game Wario World that is a huge, two headed dragon. The boss is found at the end of Spooktastic World, and Wario must defeat in order to earn a Giant Treasure Chest Key.

It has three attacks; one of these is spewing out Glue Globes. A few seconds after one head spits out the Globes, the opposite head will inhale them. Wario must avoid being stuck on any of the globes so that he will not be damaged. The only way to hurt this huge monster is to stun one head with enough punches so that, when the other head executes the firebreath attack, it gets hit with its own flames.

It's other two attacks are more physical: the heads can breathe fire and the dragon itself can whack its spiked tail on the deck.

After being attacked five times, the Dual Dragon is defeated and Wario receives the second Giant Treasure Chest Key.