When people began playing Sword Art Online, they thought it would be a fun game using new technology. Unfortunately, the players would find themselves trapped in a digital world for years. Anyone who died in the game would also die in real life.

To escape the game, the players would have to face up off confronting a series of hard bosses. The deadly bosses managed to kill some of the players before the final dominate was finally defeated by Kirito. Many of the bosses were powerful and intimidating threats. In hope of becoming free, game players would willingly risk their lives to fight the bosses.

10 Wadjet The Flaming Serpent Can Produce Several Mortiferous Swords

Wadjet The Flaming Serpent Floor Boss

Wadjet was located on the eighth flooring of New Aincrad. The boss possessed seven hit point confined. Shaped like a serpent, the flaming monster could produce minions to aid in battle.

Wadjet'due south name came from the Egyptian goddess of childbirth. The boss was capable of randomly producing semi-transparent swords. Once Wadjet suffers a great deal of damage, the snake's tail coils and starts repeatedly striking enemies. Water ice is one of the boss's biggest weaknesses.

nine The Irrational Cube Randomly Deals Out Damage

The Irrational Cube Floor Boss

Located on the sixth floor of Aincrad, The Irrational Cube is a large puzzle cube that has 9 squares on every side. Each square is assigned a number, 1 through nine. Attacks from this boss result in random harm based on the numbers.

The cube's movements speed up when the cube is close to being defeated. After the large cube is browbeaten, information technology explodes into a multitude of smaller cubes that and then accept to be defeated.

8 Asterius The Taurus King Was Defended By Two Minions

Asterius The Taurus Sword Art Online Floor Boss

In the game's beta version, players like Kirito had to face off confronting Baran the General Taurus. Later the first-flooring boss was changed, anybody would accept expected alterations to the second-floor boss besides.

Baran, the original 2nd-floor dominate, was revealed to exist a minion of the much tougher Asterius the Taurus Rex. Asterius was dedicated by Baran and one other minion. Players had to defeat all three to proceed in the game.

seven The 4-Armed Behemothic Could Be Immobilized By The Right Blow

The Four-Armed Giant Kirito

Located on the 20-seventh flooring of New Aincrad, the unnamed boss carried two different weapons. In 2 of his arms, he carried 2 large hammers. The other arms carried a large chain.

Any time the hammers hit the basis, the boss became immobile for a few seconds. A blow to the back of the neck could also render the dominate immobile. Utilizing the dominate's weaknesses allowed the players to defeat the large monster.

6 The Skull Reaper Was Fabricated Out Of Razor Sharp Bones

The Skull Reaper Floor Boss

The Skull Reaper was located in a labyrinth on the 70-fifth floor of Aincrad. Looking similar a skeletal insect, the multiple abrupt bones could easily cut enemies. The dominate could cut down players with a single accident.

Earlier being defeated, the boss killed 14 high-level players. If information technology hadn't been for Asuna'south quick actions, the dominate would have also killed Kirito. Its quick movement allowed the boss to avoid the attacks of enemies while dangerously attacking others.

5 Illfang The Kobold Lord Killed A Beta Tester

Illfang The Kobold Lord Floor Boss

Illfang was the start flooring dominate of Aincrad. Aided by several minions, the beta testers believed they knew exactly how to defeat the dominate. Unfortunately, no one knew that the boss'south attack patterns had been altered.

Diavel, a beta tester, tried to defeat Illfang using some exclusive knowledge from his offset play-through. When Illfang turned and attacked Diavel, the former beta tester became the start to die during a boss battle.

4 The Gleam Eyes Forced Kirito To Reveal His Dual-Wielding Ability

Gleam Eyes fight with Kirito

Located on the seventy-fourth floor of Aincrad, the dominate was discovered by Asuna and Kirito. While the dominate attempted to attack the duo, they fled to gather the allies they would need to defeat The Gleam Eyes.

For the first fourth dimension, players establish a dominate room where they couldn't teleport away. Using his behemothic sword, he was able to impale some of the people attacking him. When he about killed Kirito, he forced Kirito to publicly employ his dual-wielding skill for the offset time.

iii Black Minotaurus Could Regain Health By Meditating

Black Minotaurus Floor Boss

The Black Minotaurus, along with the Aureate Minotaurus, guarded the third floor of Thrymheim. The creature would use a giant battle-ax. When the monster's wellness drops beneath a certain level, the monster would retreat and begin to meditate.

While meditating, the Black Minotaurus would begin to regain health. During this time, attacking players have to deal with the Black Minotaurus' partner. The monster had a huge resilience to magic, and its nose was its greatest weak point.

2 An Incarnation Of The Radius Could Heal Instantly

Incarnation Of The Radius Floor Boss

This boss is somewhat modeled subsequently female humans. Designed to be the original last dominate of the game, the monster would be replaced by the game'south developer. When the original programing was rediscovered, the boss would once more exist used.

Possessing a variety of attacks and weapons, the monster also possessed the ability to heal whatever damage received during a fight. Coming beyond as almost undefeatable, it took a multitude of combined forces for the players to finally defeat this specific dominate.

ane Heathcliff Was The Final Boss Of Aincrad

heathcliff from sword art online

Heathcliff was the name used by Kayaba Akihiko, the creator of Sword Art Online. Becoming a well-respected member of the Knights of the Claret gild, Heathcliff was the final boss of the game. Under most circumstances, he was invulnerable to well-nigh forms of death inside the game.

When he was exposed by Kirito, he disabled his invulnerability. During a previous friction match, Heathcliff merely managed to defeat Kirito by cheating. Kirito's final battle with Heathcliff would determine the fate of many.

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