


Therefore, it is assumed a GameCube GBOX with additional RAM and a pseudo-Wii Remote interface was used to demo it at E3. The prototype was found and dumped from the last slot of a GameCube development cartridge known as an "NPDP cart".

The prototype itself is filled with debug options. This represents a glimpse at the intermediary step between GameCube and Wii development, and can be played entirely with a GameCube controller. The game requires at least 128MB of GameCube memory, nearly three times as much as the console's 43MB of non-unified RAM, and as such the game will not work on retail hardware - the only way to play it is on the aforementioned dev kit or by bumping up the emulated system RAM in Dolphin. A prototype of Metroid Prime 3: Corruption, listed as Build v3.068 and dated March 2, 2006, was built on GameCube development hardware outfitted with additional RAM.
