Destiny Stars

The Destiny Stars are a group of seven (sometimes other numbers) stars that debut in Super Mario: Wrath of the Elemental Koopas. They serve as Mario's equivalent to Sonic's Chaos Emeralds, and they turn Mario into Chaos Mario when he has collected all seven of them. Each Destiny Star is obtained by completing Special Stages, and they serve as a bonus item to collect.

Star Colors
Each Destiny Star is a different color and represents a different elemental attribute. The Destiny Stars are collected in the same order as the Chaos Emeralds are in the Sonic Advance games: red, blue , yellow , green , white , cyan , and purple.

Trivia

 * The Yellow, Green, and White Destiny Stars resemble the Starman, Green Star, and Silver Star respectively.