There are many small gaps in this level, so that should be a tip-off to use the Pastafarian. Try to strengthen the bridge by jumping on the bridge as much as possible. 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, serving as a backup 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. Don't be scared to jump on the Crumbling tiles, as the Bunny's speed will zip you across the level very quickly.