Lumalee

A Lumalee, also named a Salesman Luma, is a cyan Luma who appears in Super Mario Galaxy and Super Mario Galaxy 2. A Lumalee's appearance is very similar to that of a Hungry Luma and Comet Tico, holding up signs depicting a Life Mushroom and a 1-Up Mushroom.

Super Mario Galaxy
A Lumalee serves as a "shop," where Mario (or Luigi) can purchase either a Life Mushroom or a 1-Up Mushroom for 30 Star Bits. Lumalees can be found in several galaxies and tend to appear before boss battles. Once Mario has made his choice of purchase, a Lumalee is fed the right number of Star Bits automatically and proceeds to transform into the mushroom of his choosing for him to collect. Because of this transformation, Mario can buy only one item from a Lumalee per appearance in that playthrough of the stage.

Super Mario Galaxy 2
In Super Mario Galaxy 2, Lumalees serve the same purpose as in the first game. In addition, by doing certain missions, two Lumalees holding sticks with Chance Cubes on the end appear in a pipe that is on the left ear of Starship Mario. The first Lumalee turns into a Chance Cube for 30 Star Bits. The second Lumalee turns into five Chance Cubes for 100 coins. The possible outcomes from both Luma Shops' Chance Cubes are a single Star Bit, a 1-Up Mushroom, three 1-Up Mushrooms, and five 1-Up Mushrooms.

The Super Mario Bros. Movie
A figure of a Lumalee appears in a line of The Super Mario Bros. Movie toys released by as part of a Happy Meal campaign outside of Europe and Oceania. The release of this toy predates any official, explicit announcement of any Lumalee character appearing in the movie.

Lumalee was later explicitly confirmed to be in the film in the final trailer, which reveals it to be a captive of Bowser's alongside Luigi and the penguins. He's apparently voiced by a child actor being that Lumas are like children to Rosalina. However, this Lumalee shows to be a little crazy from the penguins upon saying that the only way out is death.

Super Mario Galaxy

 * Battlerock Galaxy
 * Ghostly Galaxy
 * Bowser Jr.'s Airship Armada
 * Melty Molten Galaxy
 * Dreadnought Galaxy

Super Mario Galaxy 2

 * Spin-Dig Galaxy
 * Puzzle Plank Galaxy
 * Boulder Bowl Galaxy
 * Freezy Flake Galaxy
 * Bowser Jr.'s Fiery Flotilla
 * Flipsville Galaxy
 * Slipsand Galaxy
 * Shiverburn Galaxy
 * Battle Belt Galaxy
 * Boss Blitz Galaxy