Chao Items

 The Chao Container is in every stage of Sonic Adventure 2 Battle. In fact, there's actually about three Chao Containers in each stage. What's in Chao Containers? Chao Containers are filled with chao keys. If you break a second Chao Container or more, they will just be filled with small animals to give to your chao.

Chao keys are keys you can find in chao containers when you break them. They allow you to go to Chao World after you're finished with the stage you collect it on. Also, if you collect the key with someone you haven't collected it with before, you have access to play as him or her when ever you want at Chao World.

Chao Stadium Items

 Shovel - This and the watering can are required for a chao to be able to plant seeds.
Watering Can - This and the shovel are required for a chao to be able to plant seeds.
Rattle Toy - This is just simply a rattle for your chao to play with.
Car Toy - This is just simply a little toy car that your chao and move back and forth.
Sonic Doll - This is just a doll of Sonic.
Broom - This is a broom that your chao can use. Sometimes the chao will sweep the garden floor with it.
Picture Book - This is a picture book that your chao will sometimes look at.
Pogo Stick - Sometimes your chao will bounce around on a pogo stick with this toy.
Crayons - These and a lesson(s) in drawing in the kindergarden classroom are required for your chao to be able to draw.
Bubble-Blowing Set - With this, your chao will sometimes blow bubbles.
Chao Ball - A ball for your chao to chase after in the neutral garden.
Chao T.V. - A T.V. for your chao (multiple chao can watch at once) to watch in the neutral garden.
Chao Jack-in-the-box - A Jack-in-the-box for your chao to play with in the neutral garden.
Hero Garden Ball - A ball for your chao to chase after in the hero garden.
Hero Garden Rocking Horse - A rocking horse for your chao (multiple chao can ride at once) to ride on in the hero garden.
Dark Garden Ball - A ball for your chao to chase after in the dark garden.
Dark Garden Radio - A radio for your chao (multiple chao can listen to at once) to listen to in the dark garden.