BowlMan.EXE

Originally a solitary bowling enthusiast, BowlMan.EXE was corrupted by ShadeMan.EXE and turned into a Darkloid.

BowlMan.EXE was revived as an Asteroid Navi by Duo. While he was never assigned an operator various copies of Bowlman.EXE were used to attack Netto and his friends on a few occasions.

(Source: Mega Man Knowledge Base)