Super Meat Boy Galaxy is an amazing mash-up, also: never coming out
Developer Aubrey Hesselgren has released a video of his "completely unofficial 3D version" of Super Meat Boy, which he whipped up for Tommy Refenes' (one half of Team Meat) 30th birthday. Using Unity and Blender, Hesselgren - also known as HilariousCow - combined SMB's bloody walljumping with the wraparound worlds of Super Mario Galaxy, and the result is a demo/proof-of-concept that's far better than many commercial attempts to move a 2D series into the third dimension.
Of course, with this being a birthday present - and "a bit of a training exercise" - Hesselgren has said that he probably won't release it to the wider world. At least we'll always have this video, which shows that it is possible to convert something like Super Meat Boy into 3D, if you take the time to get over the camera hurdles. Can someone do Binding of Isaac next, please?