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The player will need to wait until the large sphere is thrown at them to run away and then jump over it at the last second. There are five smaller spheres that Yggdrasil will throw out in random directions around the arena. This orb can track movement, so it is pretty difficult to avoid. Yggdrasil will then launch the large sphere at the player. Both of the platforms will also disappear completely, so the player will now have to face the boss from the ground. Yggdrasil will fall to the ground, but the player will see a pinkish sphere of energy form around his head.
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Once Yggdrasil's health drops a little below half he will then enter his second phase. This is the only attack that Yggdrasil has at his disposal during this phase, so the player just has to keep attacking and dodging in order to reduce his health. This will allow the player to avoid taking damage whatsoever from this attack. When the boss raises his fists in the air, the player should use the Mummy Skull's poison attack and then run away from Yggdrasil and jump towards the corner of the screen.
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A player who is on the ground will find this attack nearly impossible to avoid, so that is why the player will want to stay on either one of the platforms during this phase. Right before he attacks the player will notice that Yggdrasil will raise both of his fists in the air and then slam the down towards the player. During this phase, Yggdrasil will only attack the player using his two fists, so staying alive boils down to just avoiding his fists entirely. The player will want to hop on these platforms immediately and begin throwing bombs at the giant tree monster.
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Yggdrasil will take up the majority of the middle of the arena, but the player will notice that there are actually two different platforms on either side of him. Once the player has chosen their Skull and made it the area where they fight Yggdrasil he will immediately go into the first stage of the fight.
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