Sega's Japan-based Sonic Team has released a new video demonstrating the GameCube-GBA link feature that's supported in the soon-to-be-released Sonic Adventure 2 Battle. As the video demonstrates, the Game Boy Advance will be used for raising and training various Chao, a race of cutesy creatures that can be found in the GameCube game. A copy of Sonic Advance is not required to take advantage of this feature, but it does allow for Chao progress to be saved without re-uploading to the GameCube. The video weighs in at a hefty 18 megabytes, but it's definitly worth a look if your connection can handle it.

GameCube-GBA Link Demo Video

Source: Cloudchaser