Ring.EXE is the NetNavi of Mary Towa. She, along with TurboMan, appear exclusively in MegaMan Battle Chip Challenge. Her Navi Chip attack, Ring Rang, is an electric attack that hits the enemy twice, along with damaging waiting chip data. Another attack is "Jealousy". She and Mary constantly argue about whose fault it was that they lost. She registers Mary in the Battle Chip GP without her knowledge at Yai's request.