Tutorial in images
Cove Skip may seem like a very difficult skip to do, but using specific reference points and commands you can execute it very easily or at first.
(I'll use my run https://youtu.be/PVSIGiyOYuA as an example)
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1 - Swim at the deepest point on the floor and approach the door until it opens (no need to go too close).
2 - When you hear the door open, you go back and use this texture on the wall as a reference (as shown in the image).
3 - You go around and at the same time turning the camera towards the door (you will hear the door closing).
4 - At this point get ready, you will swim in the straight direction (do not move to other sides or you will not arrive in time, you need to be inside the door as if it were crushing you).
5 - Keep swimming towards the wall, use this point as a reference as shown in the image (don't face or change sides all the time or the door can push you out).
6 - When you notice Milo entering the door you simultaneously press the d-pad down and holding the swim button that the door will push you up.
7 - You will see Milo coming out of the water listening to him until his noise comes out (you are still inside the door).
8 - After getting out of the water use the boomerang to get out of the swim animation (because you got out of the water and are still in the swim animation that this is already a glitch, swimming out of the water).
9 - Go to the right of the door to access the game limits.
10 - Move to the left of the door that takes you to the drill hole, where you will be teleported to the top step.
(I made this image for you to have a base)
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Softlock
Do not go towards the door unless you get stuck inside the door (as shown in the video) and there is no way out, in addition to "quit game"
