You may not know it yet, but you are actually well aware of how to beat Ganon. The King of Darkness will use a single move from every Giant Boss you’ve fought up to this point, except for The Imprisoned. Here’s a breakdown of Ganon’s attacks and what item to use when you see them:
The horns on Ganon’s shoulders will open up and begin shooting seeds, just like Manhandla. Use your Boomerang to hit the horns and break them. You’ll need to break both horns to get Ganon to stop using this attack.
Ganon will also fly up into the air and begin breathing fire in your direction. He’ll try to follow you with the flames from his mouth, but this attack can be easily avoided if you press and hold the Dodge button to make your Warrior run. Just run around Ganon in a circle to avoid the attack altogether. Once he’s completed the attack, his tail will glow blue, just like Argorok’s, which means it’s time to use your Hookshot on him.
When Ganon lifts his left arm and fires a blue energy ball, that’s your time to shoot him with the Bow.
If Ganon holds out his right hand and begins charging a fireball, run toward him and throw Bombs at him to prevent him from unleashing this attack and to damage his hand so he can’t use this attack anymore.
Once you’ve destroyed each of Ganon’s four attacking parts, he changes up his attack pattern. He begins slowly stomping around the area, smashing anyone who dares get close to him. This is easy to avoid; just keep your distance and you’ll stay completely unharmed. He also occasionally leaps into the air just like Gohma. Avoid standing anywhere near the white circle on the ground and you’ll completely avoid this attack.
The moves you need to look out for are the ones that end or begin with the jewel in his forehead glowing. The first of these attacks happens right after Ganon aggressively plants his arms down on the ground. When you see him do this, he’s about to lunge at you. He spins around during the dash, doing a 180 as he lands. When he does land, however, the jewel in his forehead begins to glow, which means it time for you to strike.
Shortly after breaking Ganon’s parts, an ally will throw you the Light Arrows, which power up your Bow for the duration of this fight. The arrows that are fired from the Bow are enhanced by the health of your allies. The more health your allies have, the longer Ganon stays down when he’s shot by a Light Arrow, so make sure to restore your allies’ health whenever it drops below 30 percent.
Ganon’s second attack that makes his jewel glow happens after he aggressively grabs the ground as if he’s trying to bury his hands. His jewel glows immediately before he launches the attack. If you fail to shoot it in time, he’ll launch into the air, performing a sort of uppercut along the way.
Those two attacks are the ones to look for in order to reveal Ganon’s Weak Point Mark. He does have one other move, however. Ganon’s last attack involves him lifting up his left hand and throwing out a beam of dark, electric energy. While he’s lifting his hand, it’s covered in the dark energy, so use this as a cue to move to either the left or right of Ganon immediately. This move is devastating because the beam he shoots from his hand lingers in the air for a few seconds and anything that touches it is subject to a great deal of damage.
Despite all of that, Ganon can be felled rather easily. Focus on shooting that jewel and then hit him with a Weak Point Smash as quickly as possible. It doesn’t take more that a few Smashes to defeat Ganon, so stay focused and you’ll take him out with ease.
Once you’ve defeated Ganon, Hyrule is safe once again and you have completed Legend Mode. Congratulations!