This is Level 24 of Run 1.
Follow the snake path until platforms are in front of you. If you happen to get caught at a dead end (ex. in the photo in the info box), jump to a platform on the adjacent side. Repeat this process until you complete the level. There are many routes you can go down in this level, so keep on experimenting if you find that some routes are to challenging.
This level may be troubling for beginners as the platforms are very narrow. Just make sure you don't fall off accidentally and aim your jumps so that you land in the middle of the platform. Don't worry if you're very close to the edge though. You won't fall off unless you are on the brink of falling.