Sonic Adventure 2: Battle

There is an update to Sonic Adventure 2 for the Nintendo GameCube, called Sonic Adventure 2: Battle. This version was released on December 10, 2001 in Japan, February 12, 2002 in North America, and April of the same year in Europe.

This game added new multiplayer options, like the addition of new charactistics to the additional multiplayer characters that were in the available unlockable in the original. The multiplayer characters that were unlockable in the other game are now playable from the start, and other new bells and whistles were added.

This game also changed a large portion of raising Chao, the A-life form available in both Sonic Adventure and Sonic Adventure 2. A Chao's stats can be viewed from within the game. You can also transfer one Chao from Sonic Adventure 2: Battle to Sonic Advance, Sonic Advance 2, and Sonic Pinball Party with the GCN-GBA Link Cable. Also the introduction of Chao Karate, in which the Chao stats are used for stats in fighting, and the Chao fight in a fighting game style, with little influence from the player.

In both the Dreamcast and Gamecube version, after collecting all 180 emblems, you can unlock a 3D version of the Green Hill Zone from Sonic 1, still retaining the music from the original.

Ironically, this version of the game did not get as good reviews as its Dreamcast predecessor.