LittleBigPlanet 2 3D FPS Gameplay Makes Me Feel Dumb

Holy s***. This is actual LittleBigPlanet 2 gameplay footage. The creator says it is just "a cinematic game play trailer for an upcoming project." So, bigger things are in store. But I have no clue as to how he managed to make this. I can barely make a level without getting bored, quitting and playing other people's creation. How long did it take to create? Who knows but I'm impressed.