When you go to the doctor with that chao go to the medical chart, 2nd page, you see how old it is. If it is 5 years old it will die soon. Note: a chao year is three normal hours. If you take good care of it (not hitting it, petting it often, holding it or feeding it fruit) instead of it dying it will leave an egg. This is called reincarnation. Sadly all it's stats will be back to level one. So, you'll have to raise it again.
Sonic Adenture 2 is the original game for the Dreamcast and Sonic Adventure 2 Battle is a remake for the Gamecube. Sonic Adventure 2 Battle has better graphics, chao karate class, chao activities and chao shops.
Sonic adventure battle 2
Yes there are chaos in sonic adventure 2 battle
Gold chao can only be found in sonic advance for the gameboy advance. Then you put it on sonic adventure battle
Sonic Adventure Battle (DC/GC) and Sonic Adventure Battle 2 (DC/GC)
No
There is no chao island. sorry.
No the chao gets sonic hair.
You Can In Sonic Adventure 2 Battle. I Think you can in DX.
You don't.
Yes.
this is how i did it i traded my chao from sonic dx to another chao from sonic advance 2 for the GBA then i traded that same chao to my one of my chao in sonic 2 battle