Gun Bit is an enemy fought in Mega Man X: Command Mission.
These robots are white and blue Ice-based versions of the Rabbid that are weak against Thunder-based weapons. The only different attack they have is the Cryogenic attack, which is capable of freezing a player. Other than this, they behave very much like a Rabbid.
Run away to be accompanied by at least 1 Gun bit or 1 Rabbid.