This is level 62 of the Main Tunnel.
This level is almost entirely made up of crumbling tiles, but don't worry, they don't all connect as one big chain. Just figure out which ones are linked, and move to the next set. A fast character would be good, such as the Skater or the Bunny, not listed as suggested, but still a good idea, But whatever you do, do not jump the second you hit a set of crumbling tiles, given that the crumbling tile chains are still quite long.
But if your instincts do tell you to panic and jump crazily, I suggest using the Child, as the effect won't be as destructive.