I have done a lot of searching for this font, but eventually found it here. There are three slightly different variations of the font in the package on offer there, and I would recommend the bold one as it is the closest to Nintendo’s official Wii logo.
Note: If you are looking to use this font for commercial purposes then I would highly recommended purchasing the typeface to avoid getting into any legal hot water.
I would recommend keeping the size above 28px, as it starts to look a bit grainy below this point… Medium and light versions of the font are great for maintaining the Wii style at smaller sizes.
Mac users will be glad to know that this Nintendo Wii font is in the TrueType format, so both Mac OS and Windows users can make use of it. See installation instructions below:
Download the zip,
Open the font file
Click install. Simple, just as Apple always is.
Choose Start > Settings > Control Panel
Note: Windows XP users must choose Start > Control Panel
Double-click the Fonts folder.
Choose File > Install New Font.
Locate the fonts you want to install.
In the Drives list, select the drive and the folder containing the fonts you want to install.
In the Folders list, select a folder that contains the fonts you want to install. (Make sure you have unzipped them first.) The fonts in the folder appear under List of Fonts.
Select the fonts to install. To select more than one font, hold down the CTRL key and click each font.
To copy the fonts to the Fonts folder, make sure the Copy fonts to the Fonts folder check box is selected.
Note: If installing fonts from a floppy disk or a CD-ROM, you should make sure this check box is selected. Otherwise, to use the fonts in your applications, you must always keep the disk in the disk drive.
Click OK to install the fonts.