Metroid Prime 2: Echoes Bonus Disc (Gamecube) (Online Only)

The Metroid Prime 2: Echoes Bonus Disc was a preview demo for Metroid Prime 2: Echoes on the Nintendo GameCube. The disc contained preview and standard trailers, an up-to-date Chronicle on all of the currently released Metroid games, a slideshow of concept art from Metroid Prime and then Echoes (which is accompanied by the Tallon Overworld theme), and a demo featuring a remixed room layout (compared to the final released game).

The disc was mailed to those on Nintendo.com who registered enough games (without a case), and was later bundled with Metroid Prime in new packaging. This new set was then bundled with GameCubes later on.