Flip all the cardboard with marbles! The cardboard is gray on one side and red on the other, and the goal of the game is to flip all the cardboard into red with marbles. Sliding the screen causes the marbles to start bouncing. When the marbles touch the cardboard, they will flip over. It requires a clever sequence to flip all the cardboard into red. Game features: 1. Ddakji game 2. Puzzle game 3. Simple and challenging