Death Mountain Descent
Death mountain descent is an OoB trick that allow to leave death mountain to reach the area bellow. Generally it is used to leave the Dark World part of Death Mountain because there is the only warp to the Dark World that doesn't need a Dark World item.
There are 2-3 different death mountain descents. They work the same way, but they don't lead in the same areas.
Contents
Dark World Cemetery/North of Palace of Darkness
It's the first DMD found in this game because you can do it without special trick, you can just use a the mirror. Obviously it's very slow. The point is to go in the south east part of DM and go through the border to reach the void. From this void area you can reach the rest of the dark world.
There are 3 main ways to clip in this edge, the easier and the fastest is to do a spindash then hold >v near the corner to go through, you can use a+> too or the mirror, but it's definitely slower and more tedious.
Once you are in the void zone, you can go 2 ways.
Cemetery
Go there
and just fall down on the next screen
Behind Palace of Darkness
You have to go here, line up with the left of small "rock"
Now you are here and basically stuck without flippers.
But don't worry, now you need to fall left with <^ to load the right part of the screen (don't ask), then fall with ^> and hold > to do fakeflippers. After that you can just swim.
Thieves' Jump
This one bring you close to the dark Kakariko town. Doing this one in the light world work too and you are close to the sanctuary.
Go at the bottom west on dark death mountain.
Fast Method (requires boots)
The fastest and easiest way to do this is to Spindash. Enter the spindash state (superspeed not required) align yourself with the bottom wall and hold down/left. Once you jump down, start a dash, change your direction to up while charging, and bonk the upper wall. After the bonk, just hold down.
Precise Clipping
You can clip with <+a. If you don't have boots or you are a bunny you can try alterning <^ <v on one frame and try to reach one of this two vertical position once you clip enought into the edge to move diagonnaly. Y verticals position are 205 and 206.
The pink arrow try to show a small square of light pixel under link's shadow.
When you fall under the edge, DON'T go down immediatly, that will stuck you, move up first, then you can go down.
Bunny Clip
Add bunny clip info