We solved some of the first prototype’s challenges by using Unity 3D. Other challenges, such as interaction with the bomb, were solved by re-design of game interaction. Virtual buttons made it possible for players to have more intuitive interaction by using their fingers directly. Another improvement was made on the graphical expression with Unity’s built-in shaders. Moreover, its Unity’s complete toolset made programming more intuitive and fast. However, there are still some challenges to be solved in future.