If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Click, drag and rotate the ramps to construct a pathway to safely guide the spheres into the goal. Click the dispenser to unleash a sphere. Clicking the trashcan will reset ramps and spheres. Points are awarded based on amount of spheres lost, time taken to solve the level and difficulty of the level.
Use mouse to drag and rotate ramps.