Yep, you can get a Chaos Chao in Sonic Adventure 2: Battle! I'll tell you how to get one.
First, you need a Chao that has reincarnated at least 2 times (NOTE: This doesn't count for ages, just the "Times Transformed" thingy that the Chao Doctor says when he shows the chart for your Chao).
Once it has reincarnated twice, give it ONE of all 21 animals. Don't give it ANY Chaos Drives. You can feed your Chao, too.
Depending on who you raise your Chao with will depend on if it's going to be Hero, Neutral, or Dark.
To get an Angel Chaos Chao, raise it with the Hero Characters: Sonic, Tails, or Knuckles.
To get a Light Chao, raise it with both sides of characters. Make sure it doesn't turn Hero or Dark, just in between.
To get a Devil Chaos Chao, raise it with the Dark Characters: Shadow, Eggman, or Rouge.
When it evolves, it should be a Chaos Chao.
Yes, there are.
But you can't before it is
Yes there are chaos in sonic adventure 2 battle
You Can In Sonic Adventure 2 Battle. I Think you can in DX.
Gold chao can only be found in sonic advance for the gameboy advance. Then you put it on sonic adventure battle
Yes.
No? Once a chao has reincarnated twice and reached the state of being a Chaos Chao they simply... never die.
They don't have to. they live forever.
No but you can if you hack or play the dreamcast sonic advenure Dx
yes and the lght chao can take them as well
Giving it tons of chaos drives and animals.Simple as that.
You do the process to get a sonic chao again or make it reincarnate twice for a CHAOS CHAO!!! - the same as he said, but your chao will be better each tmie it reincarnates because it will keep 10% of its stats !!
With tons of chaos drives and animals.