You mean the sonic items in the black market shop? Well, those sells eggs which come out themselves, by breaking them or by spam-care them.
They also sells food wich you can give to your chao, you can see at the chao doctor what kind of food they like and eats the most. There is also chao food which ads points to every stat. And an apple can give sometimes 2 or 3 stamina boots instead of 1 a time he eats.
There are also seeds, you can give those to a chao who have followed lots of lessons in the chao school, and got a scoop and water can will be able to do it in the ground and let it grow. It the fruit depends on which seed you choose.
And as last there are masks for chaos to put on their head, it's just for show it doesn't give more defence or anything.
No as Sonic Advance 2 came out after Sonic Adventure 2 Battle and Sonic Adventure 2 Battle was only made to be compatible with Sonic Advance.
after sonic battle 1, but before sonic battle 3
Sonic adventure battle 2
they go on you they u should be able to use them no matter what
Rouge can be played as in... Sonic Adventure 2 Sonic Adventure 2 Battle Sonic Battle sonic riders That is all I can think of.
They're Collective Hours.
There is no Sonic Adventure 4 Battle, there is Sonic Adventure 2 Battle but that was released 8 years ago.
Usually after two minutes spent in the chao garden the black market will restock on new items.
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 Advance 2 Battle doesn't exist. But either of the following games it could be are not on XBox, anyway. -Sonic Advance 2 is a GBA exclusive. -Sonic Adventure 2: Battle is a Gamecube exclusive, although it was a port of the original Sonic Adventure 2 on the Dreamcast.
you cant
u can be him in 2 player in sonic adventure 2 battle