B.B. is a character who appears in Metal Gear Acid 2. Instead of an in-game character portrait, during communication over Snake's Codec, B.B.'s image is firewalled and cannot be seen, except for the image of a yellow smiley face. In the post-credits, B.B., in a manner of breaking the fourth wall, also reveals that he intends to leak out the chips worldwide and allow more players to be new versions of Snake, although he was unable to remember the name of the system.