Catapult Snake leads the Snake Team for the Secret Society Gekko, her form permanently altered by remodeling surgery that fused her with snake attributes, elevating her to monster executive status. She appears as a humanoid snake distinguished by red eyes. Her primary weapons are wrist-mounted catapults firing energy arrows.

Steel Princess serves as her direct subordinate. A tense encounter occurred when Culverin Bear demanded to borrow Steel Princess; Catapult Snake's remark about Steel Princess's perceived lack of intelligence provoked an aggressive reaction from Culverin Bear, visibly distressing her. She later joined Gekko's collective assault on the rampaging Ultimate Phantom. This effort failed and resulted in the loss of their base.

Beyond combat, she engages in casual dialogue with colleagues. In the Powder Room, she discussed romance with Drone Rabbit, expressing enthusiasm about Culverin Bear and Steel Princess's developing relationship and comparing their outing to a high school festival. This conversation broadened into acknowledging the difficulty of finding suitable romantic partners among their male counterparts.

Supreme Leader Bosslar's statement dismissing reliance on animal powers as weakness and endorsing Reaper Princess's refusal of such abilities visibly shocked her, indicating alignment with Gekko's core principles regarding power sources. The documented materials provide no significant long-term character evolution or backstory beyond her surgical transformation.