The Bingus is the drawing force for every SB:CS game. It is an object of immense power, and can only be found after a perilous journey. No one knows exactly what the Bingus looks like, but it often takes the form of an innocent baby or an out of place object in a photo. Spoilers Ahead!
In every SB:CS game, it is revealed at the end that the Bingus was, in fact, within the player all along. This has led to many speculations as to the nature of the Bingus.