Sonia debuted in the Psychic Force franchise as a playable character, characterized as an artificial human or bio-hybrid created by the group NOA. She fights using electromagnetic abilities and appears across various titles in the series, including Psychic Force (1997). A character named Sonia also appears in the 2002 fighting game Rage of the Dragons.
The character's inclusion in
Equinox (1994) provided early context within the franchise's overarching development. By the release of
Psychic Force (1997), her gameplay design leveraged the title's signature 360-degree cubic canopy combat, emphasizing long-range projectile zoning and high-mobility aerial dashes. This iteration focused heavily on her tragic narrative arc, specifically her complex relationship with her creator, Wong Huilan, and her internal conflict regarding her programmed nature.
In
Rage of the Dragons (2002), the character underwent a significant mechanical and aesthetic redesign to fit a classic 2D tag-team fighting format. Armed with a physical whip alongside her energy attacks, she serves as an associate of the protagonist Jimmy Sandman. This appearance features distinct graphical sprite work and a revamped moveset tailored for ground-based combos and command grabs. Across these diverse titles, her shifting playstyles and visual depictions reflect the technological transitions of her parent franchise, moving from early console boundaries to sophisticated arcade hardware.