Develop a playable 2D mobile game prototype that demonstrates the core gameplay loop, basic progression, and a small set of polished levels. The focus is on proving the concept and creating a strong foundation for future content rather than building a complete commercial game in this phase. The successful freelancer will be expected to work independently, share progress at agreed checkpoints, and raise questions early when a requirement needs clarification. All submitted work should be original, well organized, and ready for practical use after reasonable review.