This page focuses on E-102 Gamma's story in Sonic Adventure: Chaos Unleashed.

Here are the links to the other stories:

Main article: Sonic Adventure: Chaos Unleashed/Sonic's Story
Main article: Sonic Adventure: Chaos Unleashed/Tails' Story
Main article: Sonic Adventure: Chaos Unleashed/Knuckles' Story
Main article: Sonic Adventure: Chaos Unleashed/Amy's Story
Main article: Sonic Adventure: Chaos Unleashed/Big's Story
Main article: Sonic Adventure: Chaos Unleashed/Super Sonic Story

Gamma's Story

Inside a base, Dr. Eggman, Orbot, and Cubot introduce themselves to the second robot in the E-100 series, E-102 Gamma, who awakens. His training involves Gamma seeking and searing the Sonic doll in Final Egg.

Stage 1: Final Egg

Adventure Field: Mystic Ruins

After that, Eggman congradulates Gamma for completing the misison. He then introduces him to his older brother, E-101 Beta, and pits them to a small duel.

Boss: E-101 Beta

Gamma achieves victory, and Eggman, Orbot, and Cubot is impressed and grants him permission to board on the Egg Carrier. Beta wants to come along too, and so Eggman granted his request, but he will only be repaired. Later on, the fortress flies off into the skies.

A moment later, Eggman announces to Gamma and his younger brothers, E-103 Delta, E-104 Epsilon and E-105 Zeta, that Froggy has been driven insane by Chaos' tail and has eaten a Chaos Emerald. He shows the green frog on a picture on a big screen and orders them to find them immediately.

Adventure Field: Station Square

Stage 2: Emerald Coast

After acquiring Froggy, Gamma is ready to return when a blinding flash takes him back 4,000 years in the past. He tries to figure his location, but it doesn't work. He decides to inspect the area on his own.

Adventure Field: Mystic Ruins (The Past)

Gamma heads to the altar and lowers his cannon at the presence of the Chao. Tikal rushes to their aid, but she realizes Gamma's not part of the Knuckles clan and gives him some helpful information about the Chaos Emeralds, the Chao and their draconian protector, Chaos, before Gamma reverts to his time.

After this, Gamma appears in Angel Island where he must return to the jungle area where Eggman's base is located.

Adventure Field: Mystic Ruins

Gamma enters inside the the base where the launching site of the Egg Carrier takes place. He then spots Knuckles who was following him the whole time. Then the fight begins.

Boss: Knuckles the Echidna

The battle is unresolved; Gamma tries to shoot Knuckles, but Knuckles dodges the bullet. Eggman announces that the Egg Carrier is ready to launch, so Gamma forgets to fight Knuckles and heads inside. Knuckles grabs on hold of the Egg Carrier seconds before it launches.

After arriving to the Egg Carrier, Gamma meets with his brothers, whom each are holding frogs with different colors other than green. The brothers start arguing over who has the right one. Orbot and Cubot tried stopping the argument, but to no avail. The E-series robots finally stop arguing when Eggman walks in. Irritated, Eggman tells them that the frog he wants is green-colored, crazed, has Chaos' tail, and ate a Chaos Emerald. When Eggman spots Froggy in Gamma's hands, he, along with Orbot and Cubot, proudly congratulates Gamma for his capture. Turning angrily to Delta, Epsilon, and Zeta, Eggman orders Orbot and Cubot to send them away for their failure. The two minions sadly do so.

Eggman then tells Gamma to find the bird with Amy, then departs. Gamma accidentally gets into the wrong room, where he spots Beta being repaired and upgraded. He returns to the Attendance room, obviously pointing out that it was the wrong room.

Adventure Field: The Egg Carrier

He quickly gets to the dungeon where he encounters Amy and Birdie and demands her to give him the bird. Amy persistently ignores his orders and tells him that love isn't part of his programming, which Gamma angrily replies that she knows something that she shouldn't know. Then Birdie flies to Gamma and looks him straight in his eyes. Agitated, Gamma orders them to flee by opening her cell, then heads to the attendance room. Surprised, Amy and Birdie does so, and agrees that the two are now friends.

Adventure Field: The Egg Carrier

As Gamma arrives to the main room, Eggman orders him to get the jet booster from the ammunition room. 

Adventure Field: The Egg Carrier

After that, Gamma is ordered by Eggman to report to the rear end of the Egg Carrier.

Adventure Field: The Egg Carrier

After arriving to the main bridge, he finds Eggman, Orbot, Cubot, Sonic, Tails, and Amy. Eggman orders him to eliminate them. Gamma engages Sonic in battle.

Boss: Sonic the Hedgehog

Just as Gamma is ready to finish off Sonic, Amy interferes. She tells him to remember her and says that he should ditch Eggman, much to Sonic's surprise. Suddenly, the Egg Carrier is lose altitude. Sonic tells Tails to take Amy to safety while he races off after Eggman. Amy tells Gamma that they can be friends. He asks why did she help him, and she replies that she wanted to return the favor. Gamma, Tails, and Amy escape as the Egg Carrier self-destructs and crashes into the sea.

Searching his files, Gamma realizes Amy's words and goes against the wishes of Eggman, beginning his own quest to find and save his brothers.

Adventure Field: Mystic Ruins

Stage 3: Windy Valley

Boss: E-103 Delta

Adventure Field: Mystic Ruins

Stage 4: Red Mountain

Boss: E-104 Epsilon

After all of this, Gamma realizes Zeta and Beta are on the Egg Carrier and heads towards it via canoe.

Adventure Field: Mystic Ruins

Gamma enters the Egg Carrier and detects that Zeta is located inside Hot Shelter.

Adventure Field: The Egg Carrier

Stage 5: Hot Shelter

Adventure Field: The Egg Carrier

Gamma comes out of the attendance room and confirms that there are two units left to destroy: Beta and himself. He spots an upgraded Beta flying towards a field and Gamma sets off chase.

Adventure Field: The Egg Carrier

Boss: E-101 mk II

After a long battle, Beta is on the ground. Amy and Birdie arrive to the Egg Carrier and meet Gamma standing on the defeated Beta. As Gamma goes to finish off Beta, he shoots with a laser while exploding. Amy goes to check on Gamma, but there was no response. Seconds later, Gamma finally spoke and tells Amy to remember him and considers her a friend before exploding. Amy mourns Gamma, but to her surprise, coming out of the remains of the two E-series robots were Birdie's parents. While still saddened over Gamma's explosion, Amy thanks him and vows to never forget him.


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