The second room in Ganon's Tower consists of four doors each leading to a different trial, at the end of which you need to refight the boss of that area. You are supposed to refight all four bosses to break down the stone wall blocking the loading zone to the next area. It is however possible to skip these trials and go right to the loading zone by clipping out of bounds. There are three different ways to do it. The original method uses a Ledge Clip. It was more recently discovered that it is possible to use a Roll Clip to do the exact same thing.
This was the first method of skipping the trials that was found, although it used a frozen bokoblin instead of a bomb which is way more difficult. To do this Ledge Clip you need to make your way over to the door frame as shown in the video using an Item Slide.
It is a common misbelief that you need to tap towards the wall on the control stick to move towards the wall. Do not do this. For Ledge Clips you will always tap away from the wall you're trying to go through. The item in turn then pushes you through the wall.
There is an older tutorial for this trick that uses the opposite ledge than shown in the video above. If you choose to follow this tutorial you can ignore the part about leafing between the pillars in the room and just Item Slide to the door frame in question.
You can use a bomb to push you far enough in to the wall for you to do a roll clip.
1. Kill the bokoblin.
2. Dry Roll and Ledge Hang off the edge to your left.
3. Climb up and pull a bomb, then drop it with B after it is fully above Link's head.
4. Backflip and pull the leaf once you are at the same level as the ledge.
5. Grab the ledge between the wall and the bomb.
6. Do a partial Ledge Clip as soon as possible and then climb up the wall and perform a Roll Clip to the left.
8. Leaf Pump to the loading zone as need be.
Note that the same exact method is possible using a skull instead of a bomb, which can be useful when skipping bombs.
A roll clip to skip the trials from the lower level is possible with nothing but the Deku Leaf. To do this you need to grab the ledge so that practically all of Link's left hand is in the wall. This works for 2 ledges: on top of the door frame or on the ledge next to the door.
On top of the door frame:
Next to the door:
It is also possible to skip the Trials by using a series of tricky item slides. First, item slide to a door frame and then item slide to the horn above the Trial Door to grab it. You can then jump and grab a ledge to get on top of the very large door frame. On that door frame, there is a slope on the right side that you can clip through by item sliding sideways into it. This will make you fall down inside the door frame. You still don't quite have access to the loading zone from there, but there is a tiny gap in between the door and the wall, which you can item slide through to hit the loading zone.
Once you finally skip the trials, you will be on a staircase that has miniblins spawning at the top. Climb it and go through the door to make your way towards the tower's second section. You can also sidle on the side of the door to trigger the loading zone and skip opening it which is frames faster.
Once going through the loading zone, you will be in a room with two doors and another stone wall that looks like it can be broken down. It can. Through the left door is a room that allows you to spawn a warp portal to the Forsaken Fortress provided you have the boomerang. It also "spawns" the King of Red Lions which you use to go back and forth through said portal. Funnily enough, the King of Red Lions is already spawned, but waiting out of bounds for you to hit the switches. With cheats you can get to him while out of bounds and do some silly stuff.
It is also possible to open the warp portal without the boomerang, by shooting the switches in very quick succession with the bow and the gyroscope. This allows one to be able to obtain the skull hammer after performing the Early Master Sword sequence break, since leaving through the portal avoids loading Tower of the Gods after Hyrule 2, which is the trigger for Forsaken Fortress 2 to become Forsaken Fortress 3 (and FF3 doesn't have the Phantom Ganon fight). If you decide to leave through this portal without having obtained Farore's Pearl, KoRL will try to auto-sail to Windfall, causing a softlock. That can be avoided however, because there is one frame for Link to leave the boat before the softlock occurs.
The door to the right is the path you need to take to get the Light Arrows. It is possible to skip these and we will go over that shortly. Once going through the door a short cutscene will play showing you the lights on the wall in a specific order. This is the order you would need to hit the switches in the other room to trigger the warp. Anyway, to continue towards the Light Arrows, jump down the pit. You can pull the Deku Leaf while over the pit to trigger the loading zone faster.
Upon the next area loading you will find yourself in a maze. The maze is the same every time so it is to your benefit to remember the directions for it. They are as follows...
When going through the final (6th) door, you can use a bomb pull before opening the door to skip a cutscene on the other side of the door as it bars itself shut behind Link. For more on that click here.
In this room you will fight Phantom Ganon for the Light Arrows. The fight is very short and extremely easy. He has three different attacks. He can throw a white orb at you, a red orb, or he can spawn all around you with four clones. If he spawns in the air he will be using either the white or red orb. If he spawns on the ground you will know it.
If he spawns in the air and goes to throw a white orb at you, get as close to him as possible before he throws it. If you are close enough you will only have to hit it back once for it to stun him. Simply slash him as he falls to the ground to kill him.
If he spawns in the air and holds a red orb above his head, charge a spin attack by holding B. When he throws the orb it will break in to eight smaller orbs. Release your spin attack when they are all about to hit you so they all fly back to him. Hit him with your sword when he falls to the ground to kill him.
If he spawns all around you with his clones, simply hit the one that spawned behind you. The real one will always spawn behind you so it is best to stand still once you walk forward a little bit. Hit him again to finish him off.
Open the chest for Light Arrows. Go through the door that opens to head back to the main room for this area.
Break a pot containing a heart and, with only 1/4 heart, place a bomb next to Link and throw the boomerang at the heart. Then perform a zombie hover to reach one of the door frames before the boomerang comes back to Link. The boomerang will heal Link, and once up there you can perform a ledge clip or a roll clip to go out of bounds and then leaf to the loading zone leading to the final staircase. This trick skips the entire maze as well as picking up the light arrows. However, this also requires doing a backflip lift-off for the hover, since pulling out the sword too early will also make the boomerang come back to Link too early. It is most likely TAS-only.
After obtaining the light arrows, you will go back to the main room, where Phantom Ganon's final battle occurs. By performing a parry off a ground spawn from Phantom Ganon, with the right position and angle, you can land on the door frame without needing a zombie hover. From there, you can perform a very precise item slide in order to grab the wall without using the Deku Leaf:
Once you've grabbed the wall, tap right (or left) and, as Link starts moving, hold all the way up on the control stick. Because Link can't climb up from that ledge, he will start sliding in the direction you chose. This slide will allow him to climb up the wall and go OoB on either the right or left side of the wall. It is very easy to get crushed once OoB: if you climb on the right side then jumping into the loading zone causes no issue, but if you climb on the left side you must make sure you pulled out your sword before the item slide, so that you can slash your way to the loading zone (one frame window).
This trick does NOT skip the light arrows, since Phantom Ganon will only spawn in that room if you did get them in the maze. However, this is useful in order to reach the final fight without a quiver or without magic.
Note: If you have the deku leaf, then you can simply glide to the wall instead of performing the precise item slide. You can also perform a ledge clip or a roll clip from the door frame. Also note that the clipping method used on top of the door frame can be used anywhere there is a ledge you can grab but doesn't allow you to pull yourself up.
At the very top of the grand staircase, align with the pillar on the left as shown. Backflip and pull out the deku leaf. Just as you are about to hit the ledge, put the deku leaf away to grab it, and shuffle your way as far to the right as you can go. Now climb up the ledge and immediately jump towards the wall to clip through it. If you wait to long Link will simply fall off the ledge and you will have to start over. From here, make your way to the loading zone, being careful not to fall.
After performing the Grand Staircase Battle Skip, you can throw a bomb behind the door. On Hero Mode and with 1/2 heart left, leaf under the loading zone. The bomb will damage boost you up into the loading zone. By hitting the loading trigger after getting hit and before having 0 health, the fade-out will happen and you will successfully cancel the Puppet Ganon cutscene.
Because the Puppet Ganon fight can only trigger at the end of the cutscene, and because that cutscene can only play once, you will have to perform a zombie hover with almost perfect mashing towards one of the pots containing a fairy, and get healed by it, in order to reach the final fight.
Note: the video above uses a moonjump cheat to reattempt the trick.
In Puppet Ganon's chamber, angle yourself towards the path that leads to Ganondorf. Deminish you health to 1/4 heart and zombie hover. This is a mostly luck based hover, as the conditions have to be perfect in order to prevent from getting knocked down by the Keese. Once you are above the red wooden entrance to the Ganondorf battle, wait for a few Keese to come and attack you. In order to survive the hover, you will need to kill a keese while hovering and get the heart they drop. There are several ways to do so:
You can kill the keese with bombs: equip the deku leaf and bombs. Quickly press the button the bombs are on, followed by the deku leaf, then B. If done correctly, you will drop a bomb and get a heart drop from the Keese.
You can kill a keese using the bow.
Or you can kill a keese using the boomerang.
Out of these three methods, only the bombs one is close to RTA-viable.
If you performed Puppet Ganon Cutscene Skip, there will be no keese spawning in that room, and so the hovers above won't work. Instead, you can still manage to reach the Ganondorf fight by hovering to a fairy pot, breaking it, and getting healed by the fairy.
In Any%, the hoookshot is skipped, and thus cannot be used to gain access to the Ganondorf fight. Instead a Zombie Hover must be used in conjunction with a morth enemy dropping a heart to successfully get on top of the platform. To do this, you want to stand close to a morth, and then stab it (forward + B) so that Link will kill the morth and it will attach onto Link at the same time. (This sets the flag for the morth to drop a heart when it dies, which can only be activated if Link kills the morth with his sword). Now Link can shake off the morth with a roll (the direction of which is random, but will always be somewhere behind Link), and use the Leaf to blow the morth up onto the platform which has the loading zone to the Ganon fight. After the morth has been shaken off though, Link cannot move at full speed as this will causes the morth to try and move towards Link. This is advantageous after the morth is already up on the platform however, as it can be used to position the morth wherever you want.
Once the morth is positionned, you can start the hover using one of two methods.
If you have bombs, position the morth at the edge of the platform where Link can shoot it with an arrow from below. From here we can place down a bomb, shoot the morth, then press B to immediately slash the bomb and begin the Zombie Hover. Once you've hovered up to the heart, proceed into the loading zone.
This method should only be done if you don't have bombs, as it is much slower and much harder. For this method, place the morth anywhere on the platform, but make sure he is pretty far back. Get into position on the left side of the warp pot, facing the final platform, and with the bow aim at the edge of the yellow texture to get the correct angle. Walk sideways left (the morth won't move) and press B to perform a mid-air jumpslash once you slip off. This will make you jumpslash down, recoil against the middle level and land at the bottom of the structure, near the chain. This way, you will take fall damage as you land, skipping the need for blowing yourself up with bombs.
Then, perform a jumpslash (5 frame window) and mash B to Zombie Hover. You will need very good mashing in order to get up to the left side of the platform. Grind against the left pillar to get to the top and then grind against the ceiling. Because the recoil of the jumpslash gave Link 27 speed, decreasing by one unit each frame, the morth will have moved during 12 frames while you were taking fall damage, and so the morth won't be where you left him exactly. Grind against the top of the platform until you are right above the morth. Then stop mashing and press the bow button twice (once to pull out the bow and once to shoot an arrow). If your second bow press was done frame perfectly, the arrow will kill the morth. Immediately mash B again to zombie hover (make sure you didn't fall under the platform), and pick up the heart. Proceed to the Ganon fight.
The reason for the mid-air bow snipe is that shooting the morth before starting the hover would make the heart disappear before you can get to it.
It may happen to you that the morth doesn't get off Link when you roll. This is called morth glitch and is caused by triggering a loading with a morth attached to Link. This can make the hover really annoying to perform, as only a bonk will make the morth get off Link when it happens. To avoid this, do not trigger loadings with a morth attached to Link (this includes dealing the final blow to Puppet Ganon Phase 3 with a morth, entering a warp pot with a morth, and dying with a morth). To fix the glitch, quit the game and go back to the wii u menu.