GameCube Menu Music Easter Egg

[Chesireson]

The GameCube menu music is actually a 16× slowed-down version of the Famicom Disk System diskette prompt screen.

See video for comparison:

[SirCheesedip]

Pretty cool! I wonder if Nintendo hid anything on other console menus?

[BumblebeeCody]

The GameCube has 3 different start-up sounds depending on what combination of Z button holds you press. The video explains how to do this.