If a Big Daddy somehow stumbled out of BioShock's Rapture, finding himself in the dark and silhouetted 2D world of XBLIG platformer Limbo, you'd get this touching scene. Is that Little Sister, piggybacking on the Big Daddy, the same girl Limbo's hero has been searching for?

The piece was created by digital artist Zed, who also painted another Limbo mash-up that you can see after the break. This one has the game's unnamed hero encountering Portal's GLaDOS. What other game characters are hiding around Limbo? Will Solid Snake or a Creeper pop up next?