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Sonic Adventure Cheats


Alternate Station Square Appearance
Connect to the Dreamcast Network site through the Sonic Adventure game disc and download the new file.
Alternate Twinkle Park Race Views
Press Up during the Twinkle Park Race level to change views.
Black And Blue Chao Egg
Go to the egg carrier. Then, go the jail area where Amy was kept. In the cell next to where she was held is a black and blue egg. Step on the switch to open the door. Take the egg to the garden. When it hatches, a dark grey and dark blue Chao will be born.
Chao Moods
    Heart: Happy
    -- over eyes: Happy
    Swirl: Angry
    XX over eyes: Angry
    Flailing Arms: Angry
    Question Mark: Confused
    Exclamation Mark: Surprised
    Half Closed eyes: Tired
    Waving Arms: Wants Attention
Full Pause Screen
Pause the game and press Y + X.
Get All Five Chaos Emeralds With The Chao
To get all five of the Chaos Emeralds that you can get with the Chao, you need to log on to the Dreamcast Network site and go to the Chao Daycare Section. Download one of the Chaos that are 999 in all four categories. Return to your Chao Garden and race him in a Chao Race. He will easily defeat all the other Chao. Repeat this on all five races to get the five possible Chaos Emeralds.
Getting Every Emblem
    Sonic: 30 emblems to collect in Sonic's Action Stages.
    Tails: 15 emblems to collect in Tail's Action Stages.
    Knuckles: 15 emblems to collect in Knuckles Action Stages.
    Amy: 9 emblems to collect in Amy's Action Stages.
    Big the Cat: 12 emblems to collect in Big's Action Stages.
    E-102 Gamma: 15 emblems to collect in E-102's Action Stages.
    Adventure Field: 12 emblems to find in Adventure Field.
    Mini-Games: 10 emblems to collect in Mini-Games.
    Chao Races: 5 emblems to collect in Chao Races.
    Complete the game with all six characters to get 6 emblems.
    This brings the total number of emblems that are collectible in the game to 130.
Golden Chao Egg
Go to the Station Square area. Then, go to the area when you fought Chaos for the first time. Look to the side of the City Hall entrance to find an egg shaped rock. Take the rock to the building to the left from City Hall. Walk to the window to see a golden Chao egg. However, if you try to take it the front door will lock. Replace the egg with the rock and the door will unlock, allowing you to leave with the egg. When the egg hatches, a golden Chao will be born.
Hidden Artwork
Place the game disc in a PC compatible CD-ROM drive to find several rendered images from the game.
Play As Super Sonic
Beat the game with all six starting characters to unlock Super Sonic. Sonic will transform into Super Sonic after some time into the next game.
Play As Tails
Controller two may be used to control Tails after he is obtained in the game.
Note: Shields, invincibility and extra life boxes have no effect on Tails if collected.
Power-up Locations


    Light Speed Shoes: Sewer in Station Square.
    Crystal Ring: Elevator on second floor of hotel.
    Ancient Light: On rock near bridge to Angel Island.


    Rhythm Badge: Follow Tikal to past (it is on a pyramid).
    Jet Anklet: In the sewer behind Twinkle Park.


    Fighting Glove: In the cave near Angel Island.
    Shovel Claw: On a cliff behind Big The Cat's house.


    Warrior Feather: Defeat Hedgehog Hammer for the first time.
    Long Hammer: Defeat First Place score again.

    Big The Cat

    Life Belt: In the lake in the cave leading to Angel Island.
    Power Rod: In Forest under Big's bed.
    Lure 1: In Sewer Behind Twinkle Park.
    Lure 2: In a cave in the Forest.
    Lure 3: In the Icecap level.
    Lure 4: In a prison cell on the Egg Carrier.

    E-102 Gamma

    Jet Booster: In the Ammunition Room of the Egg Carrier.
    Gun Upgrade: In the room opposite the Ammunition Room.
Silver Chao Egg
Go to the Mystic Ruins. Go to the water fall located in the middle of the Adventure Field. Push the stone that is jutting out of the wall to the right of the water fall. A silver egg will fall from behind the waterfall and float to shore. When it hatches, a silver Chao will be born.
Special Chao
Collect at least 100 emblems to get access to a special section called the Black Market on the Dreamcast Network site. A Special Chao can be downloaded from this area.

Gameshark Sonic Adventure Hacks
Infinite Lives86D39645
999 RingsD3D8989A
Unlock Tails & Knuckles274F7B2C
Unlock Amy & E-102 "Y"49DA07A0
Unlock "Big" The Cat & Super Sonic7E1DCB6B
Skating Sonic44923941

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