Dragon Pipe

The Space Dragons are a species of two-headed, gray, serpentine dragons that appear in Donkey Kong Jungle Beat. Space Dragons first appear in the Apple Kingdom's level Ice Warren. By using the Sound Wave Attack near one, the dragon's mouth opens and it starts to inhale, and if Donkey Kong is close enough to the mouth, he is sucked it, transported through the dragon's neck, and emerges out the other mouth.

They later appear in various other levels, such as the Lychee Kingdom's Lava Cavern and the Star Fruit Kingdom's Asteroid Belt.

Trivia

 * Space Dragon appears as an unused model under the name NeckDragon in Super Mario Galaxy.