In World 8, the first castle has a series of platforms with on/off switches to activate them. I have gone through dozens of times but can't get the last coin I need to win the game. The platform under the red door is missing so I believe Mario must leap up to the top of the ledge running over the red door, but how? I have tried every form of Mario and none can scale the wall to get up to the top of the ledge. Are there hidden blocks he can use to climb up or is there some order the switches must be hit so the last platform appears? Thanks.