Egg Viper

Sonic Adventure

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Egg Viper

Egg Viper
Game: Sonic Adventure
Level: Final Egg
Hits to defeat: 7
Fought by: Sonic

“	GET A LOAD OF THIS!	„
— Dr. Eggman

The Egg Viper (エッグバイパー) is the fifth and final boss of Sonic's story in Sonic Adventure, fought immediately after clearing Final Egg.

Story

After being led through Lost World by Tikal, and shown an incomprehensible vision of slaughtered Chao outside a burning Emerald Shrine, Sonic returned to the surface of Mystic Ruins just in time to spot the Egg Mobile en route to Dr. Eggman's groundside base. The blue hedgehog follows, pitting him against the game's longest level, Final Egg. In a massive vertical shaft at the core of the base, Sonic confronts his old nemesis, piloting this armoured, mechanical serpent.

Strategy

The Egg Viper firing lasers at Sonic.

After riding a Rocket during the preceding cutscene, Sonic will be in an arena that consists of two floating walkways separate from each other, with the Egg Viper flying inbetween them. The first of the Egg Viper's various attacks is to chase after Sonic while firing a barrage of lasers before Eggman opens the cockpit to taunt him, at this point Eggman will be vulnerable to the Homing Attack. After the first hit, the Egg Viper will distance itself when the cockpit is opened, and will begin to charge up a crackling ball of blue plasma, at which point flashing green nodes on the Viper's body form a Homing Attack chain that leads right to Eggman. Should Sonic take too long to attack Eggman, the cockpit will fire the blue plasma attack directly at him. Sonic will land on the opposite walkway after successfully attacking Eggman.

As the Egg Viper takes more damage, Eggman will start using more attacks against Sonic. After the first hit, he will take aim after his laser barrage and fire a more concentrated laser from the front that causes an explosion. After three hits, this attack is replaced with Eggman appearing at one end of the walkway Sonic is on, and flying across with another barrage of laser attacks. After the fourth hit, Eggman will stop using the charged plasma strategy and begin appearing at one end of the walkways, hurling spinning spiked discs at Sonic - at this point, Sonic must jump on one of the discs, then attack the cockpit. After the fifth hit, Eggman will completely destroy the opposite walkway, and will resort to only using the spinning disc attack while also destroying pieces of the current walkway in order to do so, further limiting Sonic's space.

Even when the health bar is whittled down to nothing, Sonic still isn't safe. As the defeated Egg Viper flails and thrashes about as it explodes, Tikal will warn Sonic that Eggman is up to something. This leads to Eggman attempting a last-ditch attack by flying directly into the platform that Sonic is standing on, which requires extremely quick Homing Attacks or Spin Dashing to get out of the way. Once this final attack is evaded, the Egg Viper plummets down the shaft and explodes violently, and Sonic's story is cleared.

In other media

Sonic the Hedgehog (IDW comics)

In the first issue of the Sonic the Hedgehog comic series by IDW Publishing, the Egg Viper is one of the mechs shown in various flashbacks of Sonic's past battles with Dr. Eggman.