Roll.EXE is a NetNavi and main heroine in the MegaMan NT Warrior anime, working alongside her operator, Maylu. Roll is a kind and supportive friend to MegaMan and the others. She possesses a variety of abilities, including healing and unique attacks like Roll Flash (later called Roll Whip) and Roll Arrow. Roll's relationship with MegaMan is a central focus, developing from friendship to a strong bond. She also interacts with other Navis, sometimes facing challenges and conflicts, but ultimately working together to overcome obstacles. Roll's personality is characterized by her compassion and determination.