Jumbo Ray

Jumbo Rays are a type of stingray that first appear in New Super Mario Bros. Wii. These rays are green in color and wear a pair of water goggles. They have the ability to leap and fly through the sky, so Mario and company can stand on them as platforms until they disappear into the fog. Their appearance and manner of aiding the characters to pass some obstacles are similar to those of Dolphins.

New Super Mario Bros. Wii
Jumbo Rays only appear in World 5-5 of New Super Mario Bros. Wii. Here Mario and company must use them to traverse the level. They make a noise when the player jumps on them similar to when the player jumps on a Parabeetle. However, the Jumbo Rays' sound does not go up the music scale like the Parabeetle does.

Mario Kart Arcade GP DX
In Mario Kart Arcade GP DX, a single Jumbo Ray made an appearance in the underwater zone of the race track, Tropical Coast.

Mario Party: Island Tour
A large group of Jumbo Rays can be seen in the background of the Hot-Air Hijinks minigame mode of Mario Party: Island Tour. Another one can be seen in the background of one of the scenes depicted in the minigame Get Reel.