http://www.mission-in-snowdriftland.com/Mission in Snowdriftland is an absolutely gorgeously detailed 2D side-scrolling platform Flash game with production values that rival Nintendo's own efforts in the category. In fact, this one appears to have been commissioned by Nintendo as an advergame as it contains all sorts of delightful unlockable goodies—from screenshots and wallpapers to videos and ringtones—from several of Nintendo's latest DS handheld and Wii console offerings.