Our user study initiative commenced with a paper prototype that we introduced to primary school students. By observing their interaction and recording their feedback, we gained valuable input regarding its use. Hearing that puzzles and the hidden object picture were too simplistic, and that prompts for collective play were frequently required, we acknowledged the necessity for tweaks in our initial design. We proceeded to revise and enhance our prototype into a high-fidelity version, incorporating more challenging games pertinent to the storyline. With this refined edition, a second user study was conducted. We evaluated the quality of the user experience using child-friendly versions of the Short User Experience Questionnaire (UEQ) and NASA Task Load Index (NASA-TLX), and examined game performance by recording times and recognition rates. These steps ensured our final prototype was not only entertaining, but also encouraged collective interaction and provided an effective learning experience.