Plessie

Plessie is an orange, Yoshi-like aquatic creature wearing a red bandana that debuted in Super Mario 3D World. In the game, it allows the playable characters to ride it through certain levels, similar to Dorrie in earlier Super Mario games. The name "Plessie" is a reference to Plesiosaurs, an extinct group of reptiles that typically look like underwater sauropods and are often confused as dinosaurs themselves. Its name is also similar to Nessie, the nickname given to the Loch Ness Monster (which is often depicted as a plesiosaur).

It first appears in World 1-4: Plessie's Plunging Falls, where Mario and company must ride it through a river to reach the Goal Pole. It also appears in World 5-1, Sunshine Seaside;, Plessie's Dune Downhill, where it slides through sand; , Deepwater Dungeon; and , Rainbow Run. It makes a cameo in, Champion's Road, at the end, where other friendly NPCs gather to congratulate the player. Also, it appears in the game's title screen and in the credits scene.

To control it, players can tilt the control stick (or control pad, depending on the controller). To speed up, players can tilt up, and to slow down, players can tilt down. Players can also press the jump button to jump, which can be used to defeat enemies and reach higher ground. If more players are riding it, they can cooperate to tilt Plessie further. If Plessie falls off course, however, the lives lost is dependent on the amount of players riding it. If the players do not have enough lives, they receive a Game Over.

Trivia

 * Before and after riding it, the GamePad player can pet Plessie by rubbing it with the stylus, making it laugh and give them five Coins.
 * Music playing when Player rides Plessie is similar to Super Mario 64 - Princess Peach Secret Slide music