* Red Crystal: Get 50 rings and touch a red spring.
* Blue Crystal: Destroy 50 badniks.
* Green Crystal: Clear a stage without taking any damage.
* Yellow Crystal: Collect 100 rings.
* Purple Crystal: Defeat a boss.
How to Get Crystals
Crystals can be found in various locations throughout the game. They can be found in the following places:
* Stages: Crystals can be found in hidden areas in stages.
* Missions: Crystals can be rewarded for completing missions.
* Chao Garden: Crystals can be found by digging in the Chao Garden.
* Exchange: Crystals can be exchanged for other items at the shop.
Crystals are used to unlock new stages, abilities, and items. They are also required to complete the game.