Chao Egg

From Sonic Retro

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A hatching Chao Egg, drawn by Yui Karasuno.

The Chao Egg is the pre-life stage for a Chao. Once an egg hatches, a Chao is born.

Egg Types

There are many different colors of Chao Eggs. Each color can be either for a Monotone Chao or a Two-Tone Chao. Many of these eggs are available to purchase with Rings in the stores for the Sonic Adventure, Sonic Pinball Party and the first two Sonic Advance games.


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To hatch a Chao Egg, the player must either wait, cradle the egg or throw the egg. Different effects will occur to the Chao depending on how the egg is hatched.

Tiny Chao Garden eggs

Sonic Retro emblem.svg Main article: Tiny Chao Garden
Egg Cost
Normal Free
Silver 500
Gold 1000
Ruby / Pink 5000
Sapphire / Blue 7000
Amethyst / Purple 8000
Emerald / Teal 10000
Garnet / Red 12000
Aquamarine / Cyan 14000
Peridot / Lime 16000
Topaz / Orange 18000
Onyx / Black 20000


After the Chao is hatched, the eggshell can be either put onto the Chao as a mask or be sold in the Black Market.


2 Chao have created an egg after mating.

Once a Chao has evolved into an adult, it gains the ability to reproduce. Chao have no gender, therefore they can mate with any adult Chao. When a Chao is ready to reproduce, it will sit down in a ring of flowers with a heart over its head. Typically, this will happen naturally twice in a Chao's lifespan, though the player can force a Chao to mate by feeding it a 'Lifenut' from the Chao Adventure VMU minigame in Sonic Adventure and Sonic Adventure 2, or a 'Heart Fruit' from the Black Market in Sonic Adventure 2: Battle and Sonic Adventure DX. For two Chao to mate, one of them has to be ready to mate, and the other has to be close to mating. If the two Chao are ready to mate when they are placed together in the circle, they will perform a courtship dance and make a new egg appear. Chao also may breed when connecting two VMUs together.

The offspring Chao inherits statistics and other traits of the parents, and if the parents have specific physical traits, then the child can end up being an unusual type of Chao such as a two-tone Chao or a transparent Chao. Most Chao are compatible with breeding; a Hero Chao can even breed with a Dark Chao. Chaos Chao however cannot breed, neither can certain special event Chao.


Items in the Sonic the Hedgehog Game Series
Collectibles   Ring | Super Ring | Special Ring | Rich Ring | Heal Ring | Red Star Ring | Number Ring | Silver Moon Ring | Sonic Medal | Sun Medal | Moon Medal | Sun Tablet | Moon Tablet | Planet Tablet | Secret Item | Red Orbs | Blue Orbs | Green Orbs | Emblem | Chaos Drives | Special Stage Key | Material | Portal Gear | Memory Token | Vault Key | Red Seed of Power | Blue Seed of Defense | Dream Orb
Power-ups   Shield (Water, Lightning, Fire, Gold, Magnetic) | Invincibility | Power Sneakers | Rocket Shoes | Propeller Shoes | Hyper Heli-Tails | Eggman Mark | Super Ring | Combine Ring | Forcejewel | Power Core | Light Cores | Special Combination
Level Objects   Item Box | Item Panel | Spring | Spring Pole | Crane Lift | Dash Rail | Spikes | Checkpoint | Time Warp Plate | Signpost | Goal Ring | Hidden Treasure Ring | Giant Ring | Dash Ring | Rainbow Ring | Capsule | Crate | Water Barrel | Button | Dark Energy Key | Bumper | Speed Booster | Air bubbles | Chao container
Powerful Items   Chaos Emeralds | Super Emeralds | Master Emerald | Time Stones | Chaos Rings | Precioustone | Sol Emeralds | Jeweled Scepter | World Rings | Excalibur | Phantom Ruby | Reverie | Dream Core
Weapons   Piko Piko Hammer | Chaos Energy Cannon | Caliburn | Wispon
Devices   Remote Robot | Combi Confiner | Mother Computer | Nega's Camera | Arks of the Cosmos | Miles Electric
Other   Chili Dog | Fortune Cards | Speed Down Boots | Chao Egg | Scepter of Darkness | Cacophonic Conch