Instructions
Press "Play" on the main menu, then click the star-shaped button with "15" written on it to load the level.
Click and drag your mouse across the level to draw the track that the roller coaster will drive on. There are a few areas where you will not be allowed to draw; when you find them, make the track slope slightly upward before the no-draw zone. This will make the roller coaster jump into the air and land on the other side of the no-draw zone where there will be more track. It may take a few attempts to get the angles exactly right.
Press the "Play" button in the lower right corner of the game to test your track. If your roller coaster reaches the flag on the right, you will successfully complete the level.