Metroid Prime 2: Echoes Bonus Disc

The Metroid Prime 2: Echoes Bonus Disc was a preview demo for Metroid Prime 2: Echoes on the Nintendo GameCube. The game contained trailers, an up-to-date history on all of the announced Metroid games, as well as concept art from the Prime series, 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 GameCube later on.

Visors
Scanner/Visors will only work if EFB copies is set to RAM. Unlike for the full version of the game, EFB to Ram is not set as default within the game INI, so it must be enabled manually under the "hacks" tab in graphics settings.