Before Portal 2 there was Portal, and before Portal there was Super Mario Bros. Bring these together and you get a mushroom-chomping Italian plumber ruling the 2D world -- outside the cold confines of Aperture Science -- with the infamous Portal gun. The next logical step? Turn this into a first-person game. Go on, Reggie, make it happen.
http://www.engadget.com/2011/04/28/s...monster-video/