Kerberos

Kerberos (ケルベロス) is, for all intents and purposes, the Roader enemy of the Mega Man Zero series. The Kerberos appears in Mega Man Zero and Mega Man Zero 4. They attack by trying to run over Zero. When they die, they grind to a halt, turn transparent and explode instead of simply exploding. In the first game, they appear in the missions that Zero fights against Harpuia, Fefnir, and the Pantheon Core. In Mega Man Zero 4, they appear in Popla Cocapetri's stage and the Prison where Zero fights Hell the Giant.