Rainbow Mario

Rainbow Mario is a special form of Mario that appears in Super Mario Galaxy and Super Mario Galaxy 2. Mario can reach this form by obtaining a Rainbow Star. It makes Mario invincible, much like the Starman, but the effects of the Rainbow Star are more extensive and longer-lasting than those of a Starman. As Rainbow Mario, the heroic plumber runs faster, leaves a light trail behind him and breaks through certain objects. However, Mario cannot combine this powerup with any other powerup; if Mario touches one while invincible, the other item will be kicked away off the screen.

Rainbow Mario's theme is a re-orchestration of the classic invincibility theme, with the same melody heard in Super Mario World 2: Yoshi's Island while as Superstar Mario. The music as well as Mario himself will increase in speed while in use, making Mario harder to control until it runs out.

The artwork for Rainbow Mario's artwork is similar to Invincible Mario's artwork; Mario's poses in both artworks are identical, though he faces in different direction in each artwork.