Chaos Emeralds are the most powerful and sought-after collectibles in Sonic Superstars. There are seven in total, and collecting them is essential for unlocking the game's true ending, accessing powerful Chaos Powers, and transforming into Super Forms.

How to Obtain:
- Special Stages: Each Chaos Emerald is found by successfully completing a unique Special Stage. These stages are accessed by finding 'Big Rings' hidden within each act of the main zones.
- Big Ring Locations: Big Rings are often placed in challenging-to-reach areas, requiring specific character abilities (Tails' flight, Knuckles' climb/glide) or careful exploration to discover.
Benefits of Chaos Emeralds:
- Chaos Powers: Each collected Chaos Emerald unlocks a new 'Chaos Power'. These are active abilities that can be used during gameplay (activated with the X/Square button) and provide significant advantages, such as creating clones, slowing time, or summoning vines. You can cycle through your unlocked Chaos Powers.
- Super Forms: Once all seven Chaos Emeralds are collected, and you have 50 or more rings, you can transform into your character's Super Form (Super Sonic, Super Tails, Super Knuckles, Super Amy). Super Forms grant temporary invincibility, enhanced speed, and increased jump height, making you incredibly powerful.
- True Ending: Collecting all seven Chaos Emeralds is a requirement to unlock the game's true ending and face the final, ultimate boss.
Prioritize finding and completing Special Stages to collect all Chaos Emeralds. The Chaos Powers they grant are invaluable for overcoming difficult sections, and Super Forms make boss battles significantly easier.