Sadness ... Christmas card. Proving that somebody does something relating to Sadness occasionally, Nibris sent this Sadness-themed Christmas card to GoNintendo. "Merry Christmas and Happy Sadness," it reads, as a grey thing leans on a giant ball ornament with the Sadness logo. At least we think that's what's happening -- there's either a 'noise' effect applied to the whole image or it's just a really easy Magic Eye picture.
If this was the game, it would be out now. Maybe Nibris should change their plan and release Sadness as a small collection of holiday greeting cards, instead of their overambitious plan to release a video game.