When Robo-Robotnik recaptured the city of Mobotropolis with his Shadowbot horde, Isabella was one of the many Mobians who was captured and subsequently roboticized. Her daughter desperatly attempted to find and free her, but was stopped by Sonic the Hedgehog, who realized Mina could not save her mother alone and that by that time Isabella was likely already roboticized. (StH: #76)