This is level 45 of the Main Tunnel.
When using the Runner or the Child, use short hops between the rectangular platforms and run forwards until reaching the edge. Then jump high and look for another landing spot on another platform. Repeat and reach the end.
If you choose to use the Lizard, you can do high jumps and try to stay in midair throughout the level. If there aren't any tiles in front of you, use the high jumps and try to land on a platform on the wall, next to you. Yet this requires changing gravity in midair which is quite risky, with so much empty space. So good luck!