WarioWare DIY/Made in Ore

WarioWare DIY is the latest game in the WarioWare series, and quite probably one of the underrated new games of the year. It allows you to make your own microgames, comics and other things as well as play the 200 odd games included, and even send them to your Wii via another WarioWare game (which is a paid WiiWare download).

It's already been released in Japan, hence the amount of videos and screenshots you can find online.