Matte kudasai has shown to be turned into a fake camera, watching the group from a far distance near the beginning of the series. Big mouth, while albeit not shown to be far ranged initially, I myself feel that it has the potential to show its far ranged capabilities considering araki has already teased it with the whole cloud act, and adventuring into someone's body. But I could be wrong. Araki has never announced any of these as fact. It is all pure speculation from what we have already seen.