Taurus, known as Ox (オックス Okkusu?) in Japan, is a character of the MegaMan Star Force series based on the constellation Taurus. He is an extremely strong, armored bull with the bashfulness of a bull as well. He emits fire to propel himself forward or burn his enemies. When he fuses with Bud Bison, he becomes Taurus Fire (known as Ox Fire (オックス・ファイア Okkusu Faia?) in the original version).