Secretary theme!
Ok heres how to get the hidden theme.
1)go to options and select change theme.
2)rotate the control stick(the one on the left) clockwise(to the right)
3)when you hear the goal ring sound effect, the secretary theme is open!!!!!!!!
Hope this helped, may post more like this.
More tricks, tips and cheats for this game are right here - Sonic Adventure 2 Battle cheats
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