Across different regions, players pilot an advanced transformable mecha-fighter in a desperate struggle against overwhelming odds. In one version, a pilot named Zana Keene commands the ERX-75 "Chameleon," a spacecraft engineered by her grandfather, to combat a faction of viking-themed terrorists threatening global security. In an alternate telling, pilot Anna Schwinn flies the Arrow Flash, her father's technological marvel, against the expansionist threat posed by the Zorgon V alien empire. Both scenarios cast the protagonist as humanity's last line of defense, relying on their piloting skill and their craft's unique transformation capabilities to turn the tide of conflict.