Guide the Orb and make it to the exit in each level. You do this by simply clicking on the orb and drag it to the green goal zone. But its not as easy as it sounds. There are all sorts of obstacles and puzzles you must solve to get to the goal zone. The orb must not hit any wall or you will have to start again. You do not always have to carry the orb, you can drop it. The orb is not the only thing you can carry, there are crates that you can pick up and drop on switches.