I have created a flash game called "25 boxes" for the Internet Channnel, the game is pretty basic. I made it to test how flash games works on the wii, to find out what limitiation there are, and to see if the wiimote gives better scores than the mouse in this type of games. The game has two highscore tables, one for Computer users, and on for Wii users. You can only get on the Wii Highcore if you play on a Wii. If you visit this site "platinagames.com" with the Internet Channel, and click on the link "25 boxes", the game will open up in fullscreen mode, so that the content fits exactly to your tv.
The link is: http://www.platinagames.com/index.html?game=2