|Via Mindl3ss of NintendoAge|
The only thing special about the GameCube demo from 2006 is that it's one that I own. Here it is:
|The disc itself|
There you go, pretty standard. It does have its own preview thumbnail though. From there, up comes the GameCube logo and the sound of some woman creepily whispering "GameCube" before you get to the demo selection menu.