Cipher is a familiar Billy can hatch from eggs. His egg is red with stripes. He uses an fire attack where he charges ahead, damaging any monster he runs into.
Cipher looks like the mix of a rhino and a pheonix, as strange as that sounds. He is red and white with an orange horn on his nose. He has yellow and red wings and a feather yellow and red tail. He wears a red hankerchief, resembling Billy's.