Introduction
This is Level 51 of the Main Tunnel in Run 3.
Suggested Characters: 
Gameplay
This level is harder than it looks. There are 13 sides that you need to change gravity with nearly every jump, and sometimes you might need to land on very narrow platforms.
The Bunny moves sideways and forwards quickly, so it would finish the level much faster. It is, however, a little harder, and try to aim for bigger or the walls that are nearly perpendicular to you.
The Lizard is slower, but his jump height allows him to skip rings just like the Bunny.
The Runner can simply do jumps of different lengths while jumping on the bigger platforms. Even though the platform may be made of crumbling tiles, the Runner can still jump off of it.
Though not in the suggested characters due to the cost, the Angel's burst of speed can be adjusted. You can use him without the ability, and burst forward, holding jump when you want to glide, and stop. Don't overshoot and glide if you know you'll go too far.
Walkthrough
Level 51 Walkthrough (Run 3)