EDIT: Normal players cannot enter the world anymore, because you need to do a legendary quest to go there.
Completing the Mountain
To complete the mountain, the following items are needed:
The following items are optional:
- Jetpack or Soda Jetpack
- Air Robinsons, or any items that grant the Speedy mod.
- Asbestos Boots, or any items that grant the Fireproof mod.
Upon entering LEGENDARYMOUNTAIN, you would need to climb the mountain cliff until you see the rockslide. You will then need to jump up the clouds. Once you are at a good height, jump to the right and land near the maw entrance of a tiny cavern.You will then have to do a 1 jump mini parkour to get the torch. You can do this easily with a Parasol. Grab the Adventure Item - Torch and respawn back to the entrance.
Next, walk to the Gateway To Adventure and click "But I have a torch!" You will then enter the cave. You will then need to obtain the Adventure Item - Banana located above the first Rock Platform. Jump and avoid the Venus Guytraps on the floor. Bounce on the Mushroom and proceed to the next Gateway To Adventure and click "Feed him a banana."
Swim and avoid the Jellyfishes and Great White Sharks. Then, carefully swim and avoid the Venus Guytraps. Grab the Adventure Item - Key and respawn. Swim up and go to the next Gateway To Adventure and click "With a key, duh."
After that, climb up the vines and jump over the Death Spike. Keep walking and run to a curve. Set your checkpoint and make a jump for the other side, then, again, set your checkpoint.
Once you got through the password door, climb the mountainside and up the clouds. Jump off, avoid the spikes and you would land near the summit. You will then see another Password Door. Type the password, "WARDROBE".
In order to pass through the portals, you would need to go to the bottom Orange Portal, then the Blue Portal beside you, then run to the Orange Portal opposite of you. Then, jump to the Blue Portal above. Go to the top left Orange Portal. After that, you would need to go to the Blue Portal on the left. Lastly, go to the Blue Portal on the right to exit outside the mountain top.