This is level 6 of Plan A.
There are many small gaps in this level, so that should be a tip-off to use the Pastafarian. Occasionally jump and move around, but avoid jumping off the light bridge at all costs. If the bridge breaks use her small jump to jump from platform to platform. Given the extra tiles, crumbling tiles should be avoided, as it is possible to die after stepping on some and falling below the tunnel.
Another good option is the Duplicator, as his duplicates survive if you miss, as a contingency plan. You have a far better chance of losing the crumbling tiles, but the 'extra lives' compensate for this, and make him a good option for this level.
If you haven't got enough power cells to buy them, use the Bunny, as it can just land on the side of the walls. Do not be scared to jump on the Crumbling tiles, as the Bunny's speed will zip you across the level very quickly.