Rather than shimmy past the Stone Spikes at Point 1, hang from the ledge from both hands and slide over after the spiked balls drop past you.
Climb onto the yellow platform to the right of Point 3, then run and jump left, across one platform onto a long rocky ledge. There is a pipe over the ledge.
Jump up to go through it and find a room with a P Switch. Hit the P Switch and then grab as many blue coins as possible before going back down the pipe.
Watch the Bullet Bill cannon on the right as you traverse the ledge at Point 6. When it blasts two Bullet Bills at you, stand on the ledge to dodge them. Drop down as soon as they pass by you and cross the ledge as you hang from it.
