This low-pixel style game developed using Unity has successfully attracted new players with its friendly visual design (warm color palette and soft character deformation) and easy-to-learn core gameplay, making it particularly suitable for children —— The simple gold coin collection loop is reinforced by audio-visual rewards (particle effects and pitch gradient sound effects), adding positive feedback. The animations and mid-air spinning actions during character jumps add fun to basic operations. Although there is room for technical refinement, such as insufficient boundary prompts, its modular design approach has already demonstrated a solid framework foundation. It not only achieves the efficiency of the Unity toolchain but also strikes an excellent balance between creative expression and technical practice as a student project, laying a sustainable expansion core architecture for future iterations into a complete casual game.