You have to buy it
I'm not even sure you can get a shiny red. But I have over 120, and I still can't get at least a red egg.
Go to Egg Quarters and crawl up the wall and land on one of the crab legs, one of them has a parrot on the end.
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!!
As Sonic: after Sky chase Act 1, head for the casino As Tails: On the Egg Carrier after the fight with Gamma As Gamma: in the prison on the Egg Carrier after Emerald Coast
Get a lot of emblems
Collect emblems
Get emblems
You need to have at least iver 25 emblems to get a green egg in sonic adventure 2 battle
gold egg
No
You have to buy it
Collect emblems
Collect a lot of emblems
You buy them at the black market @ chao kindergarden.
You need a gameboy advance and a dual link
20