NO... It's really dumb, but unfortunetly, that is exclusive to Knuckles :(
Even though its bad news, hope that helped :)
Rouge can be played as in... Sonic Adventure 2 Sonic Adventure 2 Battle Sonic Battle sonic riders That is all I can think of.
Find a fish and use final slash on it.
There is no Sonic Adventure 4 Battle, there is Sonic Adventure 2 Battle but that was released 8 years ago.
Rouge's first appearance was in Sonic Adventure 2, as the Dark Story equivalent of Knuckles. She later appeared in Sonic Heroes, Sonic Battle, Shadow the Hedgehog, Sonic Riders (and it's sequels), Sonic The Hedgehog (2006), Sonic Rivals 2, the Mario & Sonic at the Olympics series, and Sonic Chronicles: The Dark Brotherhood
He may one day, it is possible.
It let's Knuckles breath underwater without having to rush for air =)
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.
There is no such thing as Sonic Adventure Battle 1, nonetheless no Sonic Adventure is playable on Sonic Mega Collection.
Sonic adventure battle 2
she's a bat
there is sonic adventure 3
Yes there is a sonic adventure 2 battle for the gamecube. I know because I have it~