These zip zip balls need to cross the river. Can you help them accomplish their mission? If you do, use you mouse to move the plank in the river, so that the ball can jump on it and won't fall in the river. Their survival depends of your ability to follow them and react in the right time. From the beginning balls falls one by one, but later they multiply and it will messed, thus you can hardly catch them all. So, how many can you save and thus make best score? You'll get five lives, which can increase if you catch a heart icon, but can also lose a life if zip ball fall in river. Plank can be shortened if vertical plank icon catches you and can maximize with a horizontal plank icon. Make an effort to work things out!