This is level 7 of the B-Tunnel.
This level looks simple, but is really easier said than done. The crumbling tile chains are long, so that side once you step onto the crumbling tiles is temporarily unusable. When you step on, you need a character who runs at a fair speed and jumps high.
The Jack-o-Lantern would be best for this level. The Runner would be OK, but jumping back into the level would be slightly harder. If you have the Bunny, use it. You'll understand why.