Wii Menu

The Wii Menu (known internally as the System Menu) is the graphical shell of the Wii game console, as part of the Wii system software. It has four pages, each with a 4:3 grid, and each displaying the current time and date. Available applications, known as "channels", are displayed and can be navigated using the pointer capability of the Wii Remote. The grid is customizable; users can move channels (except for the Disc Channel) amongst the menu's 47 customizable slots by pressing and holding the A and B button while hovering over the channel the user wants to move. By pressing the plus and minus buttons on the Wii Remote users can scroll across accessing empty slots.

The Disc Channel allows users to play Wii and GameCube titles from supported Nintendo optical discs inserted into the console.

Wii system updates are required before playing some games, like The Sims 3, Super Mario Galaxy, Doctor Who: Return to Earth, Iron Man 2, and certain Guitar Hero and Rock Band games. When loaded into the disc slot, an icon on the Disc Channel that says "Wii System Update" appears. After selecting the channel, the Wii will automatically update. If these updates are not installed, the games will remain unplayable until the update is installed, as each time the channel is loaded with the game inserted, the update prompt will appear, and declining the update will return the player to the Wii Menu instead of starting the game. (Note: is the only channel that cannot be moved across the Wii Menu without the use of third party tools.) The games which display "Wii System Update" are still playable using the USB Loader or the Backup Launcher on the Homebrew Channel.

The Mii Channel is an avatar creator, where users can design 3D caricatures of people called Miis by selecting from a group of facial and bodily features. At the Game Developers Conference 2007, Shigeru Miyamoto explained that the look and design of the Mii characters are based on Kokeshi, a form of Japanese doll used as souvenir gifts.

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