Chao Breeding is the process of two Chao creating an egg in Sonic Adventure and Sonic Adventure 2. There are several advantages to this, including uniquely colored Chao and Chao with higher letter grades. They only can have one child per lifetime, however. The use of Heart Fruits, though, will allow them to breed again.
Here are a few breeding possibilities. Be aware that any egg may not hatch to appear any different than one of its parents.
|Parent 1||Parent 2||Children Appearance||Pictures|
|Normal Chao||Monotone Chao||Two-tone Chao|
Monotone Normal Chao
|Monotone Chao||Monotone Chao||Either parent|
|Monotone Chao||Shiny Monotone Chao||Either Parent|
Shiny Parent 1
Monotone parent 2
There is an exception to Chao breeding:
- A Chaos Chao cannot breed.