Spine Coaster

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Mario, riding the Bonecoaster in New Super Mario Bros. Wii.

Bonecoasters are rideable creatures made of bone used to make Mario and his company pass through the lava pit. They only appear in World 8-7 from New Super Mario Bros. Wii, a stage that can be unlocked by finding the secret exit in World 8-2. It also appears in multiplayer versus mode.

A Bonecoaster, as seen in the demo game, New Super Mario Bros. Mii.

Bonecoasters are very useful throughout World 8-7 because they help Mario and his friends get the Star Coins in this stage and also prevent them from falling into the lava. However, the Bonecoasters often make risky maneuvers, passing through lava geysers and into the lava itself. Bonecoasters can stand the weight of Mario, Luigi, and both Toads on it. However, if all characters perform a simultaneous ground pound, it will fall. Also, Bonecoasters cannot hurt any character.

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A Bonecoaster, as seen in Super Mario 3D Land.

Bonecoasters have also appeared in the Wii U demo New Super Mario Bros. Mii shown at E3 2011. One is seen in a dark cavern that is filled with poison water, carrying Mario and friends once again.

Bonecoasters later appear in Super Mario 3D Land. However, they only make the appearance in World 8-Bowser's Castle 2. Their design has changed into a three-dimensional figure. They also somewhat resemble Dry Bones.

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A Bonecoaster in New Super Mario Bros. 2.

Bonecoasters once again appear in New Super Mario Bros. 2, though they act more like Skull Rafts from Super Mario World. Two Bonecoasters only appear in World 6-2, where they sail along the lava. Once a Bonecoaster has reached its stop, Mario or Luigi can ground pound its head to make it spit out a large amount of coins, or even a 1-Up Mushroom. A little detail was added in this game where the eyes glowed every time a vocal riff was heard.

Trivia

• "Bonecoaster" is a combination of the words "bone" and "roller-coaster".
• The Bonecoaster somewhat resembles a Bone Dragon, but its head is smaller in size, and there are no spikes on its back.
• Whenever the Bonecoaster goes fast, especially on a slope, it lets out a dinosaur-like roar. A single Bonecoaster may let out multiple roars during a ride. The Bonecoasters in Super Mario 3D Land make a different noise.