stuck on 5-4

i am in a cave like world can't get in the locked door and can't get scanned don't have the right requirments... really stuck can't get anywhere...

Stuck on that crazy level chapter 5-3? If you answered yes, READ THIS!
After going past the Floral Sapiens dispursing pipe, go to a pit. Flip to 3D and you'll see a ladder. If you want to save HP, don't take the ladder; instead, fall down. You'll see a step switch and a Floral Cragion. Use Thoreau and pick up the Floral Cragion. Step on the switch and a pipe should appear. Find your way through the maze until you're at a place with a skull panting. Use Fleep and flip the skull and a key will fall out. take the key and surface. Find the locked door and open it. Talk to the Cragion and you'll recieve Dottie. Get out by pressing the 1 button. Go through the red door. Then, find the place where you scan a card. Keep going left and you'll aquire a card. Press up and use the proper card. Find your way until you run into O'Chunks and Dimentio. Fight. Later, when you defeat O'Chunks, pick up the Floral Sprout and say ''Yes''. Exit. then find your way to where you're scanned. Go through and take the door. Flip to 3D and below all paintings, you should use Boomer and go down, match colors of the kings' faces. A door should appear. Enter the door. You'll begin to fight the king of all Floro Sapiens, King Crocas (or whatever). I sugggest to use Bowser and Thoraeu. Ride on one of the faces when the face is opened up, or you can dodge the other faces and pick them up with Thoreau and throw them at the king's head when its open. You should be able to move on!