This is Level 29 of Run 1.
This level is very short, featuring only 5 platforms in the level. What makes the level hard for some players is the distances between the tiles. Some are longer and some are shorter, so timing is crucial here. There are only a few paths to victory as there are only so many tiles, so it should be easy to figure them out for yourself. Use the trial and error method and you should soon find a successful route.
The easiest route to complete this level is to immediately jump to that first tile on your right and switch gravity. Then move to the left to hit a tile to your left to once again switch gravity back to how you started. Then, there is one more tile before then end, which should be easy to reach.