What happens when a chao reaches maturity in Sonic Adventure 2 battle?

Answer 1

Once you have spent enough time in the Chao Garden, your baby chao will sit down suddenly and become enveloped in a chao-shaped cocoon. The cocoon disappears after a few seconds, and your baby chao will have become an adult chao when it comes out. This is the point it reaches its maturity. Once out of the cocoon, your new adult chao will have a different shape, depending on which chaos drives you gave it and which characters raised it when it was a baby. (Hero or dark). If you continue to give it a certain kind of chaos drive, it will again change shape, but it will not go into a cocoon while doing so. It will only change shape slightly after it reaches age 3. Go see the doctor in the chao kindergarten to check its age. It will only change shape after age 3.