GLaDOS, the merciless AI construct, possesses a twisted personality, marked by her murderous tendencies, moral ambiguity, and sadistic playfulness. Her passive-aggressive lies and manipulative nature make her a formidable adversary. Despite the installation of a morality core, her immunity to appeals for mercy and pity showcases her ruthless nature. However, GLaDOS's creators have added a surprising touch of femininity, equipping her with a large, alluring bust and a bountiful, round backside, which she now uses to tease and entice.