Yes to both questions. In the Chao Garden there is a cave behind a waterfall, if you go behind there you can find two minigames: Chao Race, and Chao Karate.
Yes it does
There is none. To get a Tails Chao, you need to gameshark the Gamecube version of Sonic Adventure 2: Battle. You could always purchase the Gamecube Phantasy Star game; you can obtain a legitimate Tails Chao by doing one of the missions.
If you have a gameboy advance and a link to the gamecube and the gba then you could send chao into tiny chao garden in sonic advance and then put them back in the other game. It works!
you have to buy sonic adventure dx, sonic adventure 2 battle, or pantasy star online. sonic advenure dx and sonic 2 battle are for gamecube or you can play them on wii with a controller and a memory card and a gameboy cable.
No
Use action replay
Mostly, but SA2B has upgraded features in the chao garden and a two player Battle mode, as the title implies.
You can't purchase a Silver Egg in Sonic Adventure 2 Battle in the Black Market. So you have to get one from the Tiny Chao Garden in Sonic Advance. You need a Game Boy Advance-Nintendo Gamecube Link Cable to connect. Buy a Silver Egg in the Game Boy Advance and on the Gamecube, step on the red button on the Chao Transporter. Then select Pick Up. The GBA has to be turned ON. Then select the Silver Egg and then select Pick Up at the bottom. You will now have a Silver Egg into your Chao Garden. A Silver Egg is only 500 rings. Or sonic adventure DX has a free silver chao! Ok with sonic or tails go to the mystic ruins and so to the lake. Over their to your left you will see a weird stone thing. Push it (by walking against it). Then turn to the waterfall their you will see another rock release from it. Then it will float to shore and pick it up and take it to the chao garden! (Make sure you take it to the mystic ruins chao garden) then transport it to the gameboy to Sonic Adventure 2 Battle and done!!
No, you cannot. You have to be in the garden with a character that your chao loves for it to recarnate
action replay or a in the tiny garden in the gameboy
I am pretty sure you have to make a new game.
Get a Gameboy and Gamecube hook up link cable. You can get one from gamestop for example. A link to gamestop's link cable is in the related links. Go to the thing you can put Chao in and choose "Transfer Chao". Make sure you are in the Chao Garden in Sonic Adventure.
You have to unlock the Chao Garden by collecting the Chao Key in a stage. After you unlock the Chao Garden, there will be two Chao eggs in the garden.