Eggman don't use their mechs while inside Chao World. But in the other versions of Battle and in the Dreamcast version it is there. In the GameCube version of Sonic Adventure 2 Battle Big's cameos were removed.In the Battle version some effects were changed/added.In the Battle version in the level Crazy Gadget there are Red X's, but in the Dreamcast verion the X's are green.In the Battle version there are some new features. In the Battle version you have all of the characters without having to get all the emblems. Unlike the Dreamcasst version the where you need all 180 emblems to unlock everthing in the mutiplayer.Sonic Adventure 2/Unused Voices Version Differences Big The Cat (Playable in the dreamcast version/Cameo in SA2B version).Eggman's stages involve them slowly making their way towards the goal in their own mecha suits by destroying enemies, going up platforms and many various things that are new to the Sonic franchise.

While Rouge's mode focuses on finding various objects throughout the game, the majority of Knuckles' stages have him search for pieces of the Master Emerald.

Knuckles and Rouge's mode is a treasure hunt mode where they both must find three pieces of an object or three objects. To be able to play the 3D version of Green Hill Zone, get 180 emblems and get an A-Rank on all of them. Sonic and Shadow focus on the basic mode where they must reach the goal with their super speed, while dodging obstacles and defeating enemies along the way. The gameplay focuses on three modes with both Team Hero and Team Dark following these modes.

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