They are found more often than coins in the galaxy universe, and can be collected with the Wii Remote, or Mario can pick them up by himself. Mario can launch them to shoot enemies, temporarily stunning them. Some parts of the game require that the player has earned a certain number of Star Bits, as he is asked to "feed" them to a Hungry Luma.
The colors that a star bit can come in are red, yellow, green, blue, purple and white. Star bits can be found in many different ways.
- When the player collects 9,999 Star Bits in Super Mario Galaxy, all coconuts turn into watermelons, the function of the watermelon and coconut are the same, however.
- A theory in the game The Legend of Zelda: Spirit Tracks, is that the Star Fragment item is considered an inspiration from the star bit.