In the alternate TF2/Freak Universe, Bonk Girl actively protects Mannopolis—a futuristic, technologically advanced city in the 21st-century Badlands region. Alongside Bonk Boy and Ninjineer, she serves as one of the city's primary defenders, safeguarding citizens from crime and attacks by malevolent TF2 Freaks. Her heroic efforts have made her a popular figure in Mannopolis, inspiring merchandise, statues, and even a dedicated holiday in her honor.

Beyond her combat duties, Helen acts as a positive role model, encouraging citizens to believe in their abilities and strive for their goals. She also contributes to the community by allocating a portion of her earnings from merchandise to support local charities, educational institutions, and other civic initiatives.

Bonk Girl's powers stem from a substance known as Z-Power , a fusion of Australium and the isotopes found in Bonk! Atomic Punch and Crit-A-Cola. This grants her enhanced strength, agility, durability, and the ability to manipulate static electricity, which she uses both offensively and defensively in combat.

Her equipment includes a specialized Atomizer and Sandman, designed to complement her electric abilities. Her outfit, combining style and functionality, is crafted from a special fabric that is resistant to damage and wear, maintaining its pristine appearance regardless of the battles she endures.