I think it will reincarnate when it goes in a brown cocoon. Your chao is most likely evolving, at least if it's a pretty young chao, but if you've had it for a long time, then it might be dying/reincarnating.
Chao Chao can reincarnate on SA2 battle (so long as you look after them WELL). once they die, if reincarnating, the cocoon is pink, if disapearing, it will be grey. ....Meowth!
It will either: a) Evolve into adult,if a baby (blue cocoon) b) Die of old age,and reincarnate because you took good care of it (pink cocoon) c) Die,getting erased from the gamecube memory (grey cocoon)
This is because of lack of proper care, such as petting it and feed it fruit. If you have saved it just before the Chao has tried to die, you will be able to, if fast enough, reach the Chao before it goes into the grey cocoon. Pick it up, then feed it multiple fruits in a row. Then, Pet it for a while. If you did it well enough, it should go into a pink cocoon and reincarnate.
Get a Chao and reincarnate it twice. (It turns into a pink cocoon. When it reincarnates instead of a gray one) After the second reincarnation feed it all 21 animals and each one only once. It should turn into a Chaos Chao once it evolves into an adult.
Give your chao lots of dark fruit (which can be bought in the Black Market), after it looks dark enough stop and wait for it to evolve. After it evolves do what ever you want to do with it (besides hurt it or take fruit away from it), treat it nice. Then wait for it to recardinate (you'll know when it recardinates because it will go into a pink cocoon). If it goes into a grey cocoon it will die. After it comes out the cocoon it will back in it's egg. Rehatch your chao then before it evolves again give it lots of dark fruit and one of every animal in the game. After it evolves you should have a Dark Chaos Chao (Devil Chao).
it means that your chao has reincarnated! (yay!) when the cocoon dissapears an egg will be there, when it hatches it will have the old chao's name and have 10% of its stats
it goes into a pink cacoon and goes back into an egg it goes into a pink cacoon and goes back into an egg
Either when it dies or you say good-bye to it,it's erased from the gamecube's memory card. There's a chance though (if you take good care of it) that instead of dying in a grey cocoon it will go on a pink cocoon and reincarnate as an egg.
To Get a Pink or Purple Chao Egg get 94 Emblems
To get a neutral chaos chao in SA2B, your chao must have been reborn twice. You get them reborn by treating and training them well throughout their lives until they die. When they do die, a cocoon will appear around them and if they are going to be reborn into an egg, the cocoon will be pink. If the chao is going to die and not come back, the cocoon will become grey.So, once your chao has been reborn twice (you'll need to get it reborn after the first time), you have to feed it one of every animal AND NO CHAOS DRIVES. Then you feed it either a dark fruit, a hero fruit or a chao fruit depending on what you want it to be (in your case you feed it a chao fruit) and then wait until it evolves. If you've done it correctly, you'll have yourself a neutral chaos chao.
Genetics is the difference between the pink silkworm cocoon or the white cocoon. Silkworms in the wild spun yellow silk to blend into the dead foliage. Today silkworm farmers are beginning to selectively breed for different colors.
1.Hatch and evolve any normal colored chao(if you want a pink two-tone, get a pink egg and you can do any color) 2.Hatch and evolve any normal chao like the first chao you get 3.Breed the 2 chao and you should get a two-tone. If you don't, try breeding again