Hatch a Chao: Hatch a chao and take care of it as you would a normal chao.
Let it Reincarnate: Make sure the chao loves you. Let it turn five years old to die and reincarnate.
Take Care of It: Raise it once more to adulthood.
Let it Reincarnate Again: This is the second time it should have reincarnated. Give it ONE of EVERY animal. Not more, and not less. There should be a total of 21 animals.
Pet it with dark characters and feed it dark fruits. Once you've taken care of it for a while, it will metamorphosize into a Dark Immortal Chaos Chao. It will never die. |
Pet it and take care of it evenly with both Hero and Dark characters. Feed it chao fruits, too. Once its stamina level has been brought up to a certain level and you've spent enough time with it, it will metamorphosize into an Immortal Chaos Chao, or Light Chao. It even slightly resembles chaos zero. |
Take care of it and pet it with Hero characters. Feed it hero fruits. When it metamorphosizes, it will turn into a Hero Immortal Chaos Chao. |
Let a Chao Reincarnate Twice
Give it all of the 21 animals - ONE of EACH
Raise it with Dark/Hero characters.
Let it metamorphosize.