The Tiny Chao Garden can be linked up to Sonic Adventure 2: Battle. Chao are creatures that can be raised, fed, and be taught skills. By pressing 
over your Chao it will be stroked and if you press over items they can be moved.
On the right-hand bar, the stats of your Chao will be displayed. These are:
- Mood
- Belly
- Swim
- Fly
- Run
- Power
- Stamina
When the colored dots all turn blue, the Chao will level up in that particular thing. The main bars are the Mood and Belly bars as they are not skills. If you spend a lot of time with your Chao it will be happier; petting/stroking it also makes it happier. You also have to feed your Chao regularly to make sure it isn't hungry.
The bar at the top shows the name of your Chao; this can be changed by pressing on it. The bottom bar shows how many coins you have. By pressing 
the store will come up. You can use all the coins you have to buy fruit to feed your Chao as well as toys and occasionally eggs. By leveling up your Chao new things will appear in the bottom two rows of the shop.
Shop[edit]
| Image | Name | Price |
|---|---|---|
|
Orange Fruit | 30 |
|
Blue Fruit | 60 |
|
Pink Fruit | 55 |
|
Green Fruit | 50 |
|
Purple Fruit | 30 |
|
Yellow Fruit | 55 |
|
Red Fruit | 70 |
|
Trumpet | 1,000 |
|
Rubber Duck | 2,000 |
|
Television Set | 10,000 |
|
Normal Egg | 0 |
|
Silver Egg | 500 |
|
Gold Egg | 1,000 |
|
Ruby Egg | 5,000 |
|
Sapphire Egg | 7,000 |
|
Amethyst Egg | 8,000 |
|
Emerald Egg | 10,000 |
|
Garnet Egg | 12,000 |
|
Aquamarine Egg | 14,000 |
|
Peridot Egg | 16,000 |
|
Topaz Egg | 18,000 |
|
Onyx Egg | 20,000 |
Mini-Games[edit]
To earn money, you have the option of playing two games, they appear on the top of the screen using the 
white GBA and 
blue GBA icons.
- Rock/Paper/Scissors: By hitting the
white GBA you come to the classic Rock/Paper/Scissors. Rock beats scissors, scissors beats paper and paper beats rock. - Matching Pairs: By hitting the
blue GBA you come across the Matching Pairs game. You have to memorize where the cards are and then try to find a pair. But you can only make three mistakes before it's game over. Finding cards in the red section earns you x5 coins, in the purple section it's x3 coins and in the blue section it's x1 coins.