SG4. Attractive: Ninety-three percent of the contestants also felt that the game graphics is attractive. This value is also a very high evaluation in this investigation. We modularized the scene classes with the mix-in feature of Scala to make our game attractive. The SoCs between game logic and UIs helps us divide the labor appropriately. In particular, our designers concentrated on how to render the game screen. Therefore, we successfully provided the fine game screen and useful UIs.