A game playing device for rolling balls includes a game surface, a plurality of bar-shape elements and at least one rolling ball that rolls on the game surface. The game surface is made of a fabric and has an area and a shape including a circular shape or a rectangular shape, and its edge has a holding portion provided for users to hold and lift, and both ends of the bar-shape element are fixing ends provided for users to freely attach and detach the bar-shape element on any position of the game surface, preferably by adhesive tapes. The bar-shape element is bent into an arc shape to simulate a goal or an obstacle when it is attached. The game surface can be placed on a floor or held by players for playing the game in different ways based on their creativity and imagination and adding more fin to the game.