We have created two interactive games, “Facial Symmetry” and “The Wonder of Shapes & Fractals”, for the Hong Kong Science Museum Children’s Gallery. The colourful blocks-alike casing to the interactive games was all built by our creative design and engineer team. “The Wonder of Shapes & Fractals” kiosk housed trilateral screens, facilitating multiple users to play via three touchable gaming interface. The game encourages children to follow simple instruction for shape drawing and fractal matching. Another double-sided kiosk, featuring the “Facial Symmetry” game, integrated a photo booth to allow users to use their selfie to interpret the logic of symmetry.