You need a cat suit for all 3 of them. The 1st one is before thr checkpoint use ur cat suit to climb the wall to your left. The 2nd is after the Plessie ride, use your cat suit to climb the walls directly in front of you. The 3rd one is right before the final warp pipe. Use your cat suit to climb the wall where the warp pipe is. Hope I helped and good luck! :)