Get A rank on all of the missions on all the levels of a character's stage to unlock their alternate costume in 2 player mode.
Description
Effect
Eggman's alternate costume in 2P
Get A ranks on every mission of Eggman's stage
Knuckles' alternate costume in 2P
Get A ranks on every mission of Knuckles' stage
Rouge's alternate costume in 2P
Get A ranks on every mission of Rouge's stages
Shadow's alternate costume in 2P
Get A ranks on every mission of Shadow's stage
Sonic's alternate costume in 2P
Get A ranks on every mission of Sonic's stage
Tails' alternate costume in 2P
Get A ranks on every mission of Tails' stage
Unlockable Items
Description
Effect
Ball for Dark Garden
Win the first 2 levels of the Dark race
Ball for Hero Garden
Win the first 2 levels of the Hero race
Ball for Normal Garden
Win the first 4 levels of the Challenge race
Broom
Win all 5 levels of the Topaz race
Car
Win all 3 levels of the Mushroom Forest race
Chao TV
Win all 12 Challenge Races
Jack in the Box for Normal Garden
Win the first 8 challenge races
Note in a bottle
Win all 5 levels of the Dimond race
Pencil Case
Win all 5 levels of the Onyx race
Picture Book
Win all 5 levels of the Perridot race
Pogo Stick
Win all 5 levels of the Garnet race
Radio for Dark Garden
Win all 4 Dark Races
Rattle
Win all 3 levels of the Block Cannyon Race
Rocking Horse for Hero Garden
Win all 4 Hero Races
Shovel
Win all 3 levels of the Crab Pool race
Sonic Cudly Toy
Win all 5 levels of the Aquamarine race
Watering Can
Win all 3 levels of the Stump Valley race
Unlockables
Follow the methods below to obtain the desired unlockable:
Description
Effect
2P Kart Race
Simply complete both Route 101 (Hero) and Route 280 (Dark) and Kart Race in 2P Battle with become avaible.
Boss Attack Mode
Complete either the Hero or the Dark side story modes. Here you will be able to fight each boss from either the Hero or the Dark side
Dark Chao Garden
Raise a Dark Chao with one of the three ''Dark'' characters. Continually feed and train your Dark Chao and soon it will evolve (creates a tear-shaped ''cocoon''). Once it evolves, the descending stairs should appear at the main Chao lobby
Diamond & Onyx Chao Races
Win at least one race from Aquamarine, Garnet, Peridot, and Topaz Chao Races to unlock them.
Green Hill Zone
Get all 180 Emblems and unlock the 3D version of Green Hill Zone from Sonic The Hedgehog 1.
Hero Chao Garden
Raise a Hero Chao with one of the three Hero characters. Continually feed and train your Hero Chao and it should evolve (creates a tear-shaped ''cocoon''). Once it evolves, ascending stairs should appear at the main Chao lobby leading to the Hero Garden.
Hidden Secretary Theme
When you are on the Theme Select screen, rotate the Control Stick Clockwise for a while until you hear a chime-like sound. You should be able to select the Secretary Theme.
Jewel races
Complete all 4 of the original races and get the emblem. The Jewel races will be unlocked.
Kart Racing Game
In the Hero Side story complete the Tails driving quest and then in Dark Side story successfully finish the Rouge chase mission. You will now have a playable kart racing game to play.
Last Stage
In order to play the actual last and final stage of this game, then finish both Hero and Dark side story games. Once this is done, go into story mode and a ''Last Stage?'' menu selection should appear between the Hero and the Dark Side selections
Level 4 2-player games
Beat Final Rush or Final Chase in the Hero or dark side and a level 4 game should apper in 2-player mode
More Karts
Complete every mission for each character (ranking does not matter) and you'll unlock the new kart for them. Simply highlight their picture on the select screen and press Up
New 2P Costumes
Complete every mission as a character with A ranking on every one of them (extremely difficult) and that character will obtain a new costume to use in 2P Battles.
Rattle Chao Toy
Win all 3 Block Canyon races
Scene Select.
Beat the story.
Shovel Chao Toy
Win all 3 Crab Pool races
Super Level on Chao Karate
Complete all three of the original difficulties in Chao Karate using the same Chao and that Chao (and that Chao only) will now have access to a Super level
Toy Car Chao Toy
Win all 3 Mushroom Forest races
Watering Can Chao Toy
Win all 3 Stump Valley races
Chao Traits
To raise a chao that is more skilled in either running, swimming, flying, or strength, you must feed the chao a certain type of chaos drive while a chao is still a child. For a fast running chao, feed it more green chaos drives than any other color of chaos drive. For a fast swimming chao, feed it more yellow chaos drives than any other color of chaos drive. For a fast flying chao, feed it more purple chaos drives than any other color of chaos drive. And for a stronger chao, feed it more red chaos drives than any other color of drive. But remember! Your chao must be a child! You can tell if you've done it right, if your chao starts to grow odd extentions on the back of its head.
Chaos Chao
To get a Chaos Chao you must first have your chao reincarnate twice. Then in its third life while its a child give it one of every 21 kinds of animals. Only one of the same animal and dont give it drives then have the alignment to what you want it to be. For a Hero Chaos Chao make its alignment hero for Nuetral Chaos Chao make its alignment Nuetral. For a Dark Chaos Chao make its alignment dark. Then wait for you chao to evolve and a Chaos chao will come out of the Caccoon
Speed Up 2-Player Time Stop
When playing two player, if your opponent uses "Time Stop," press and hold forward on the control stick to make the time go faster.
2 Player speedup glitch
Double Running Speed
In a 2 player action race Sonic and Shadow can activate a glitch that will increase your running speed. To activate the glitch get between 80-89 rings, and make sure you have a speedup. when you are ready stand in front of a point marker and then press B button to activate your speedup, directly afterwards run through the gate. your character will now run at 2x speed. to deactivate the glitch exit the level or select "No" after the race is over. NOTE:this glitch will also cause a decrease in grinding and boarding speed.
Double Grinding and Boarding speed
In a 2 player action race Sonic and Shadow can activate a glitch that will increase your grinding and boarding speed. To activate the glitch get between 80-89 rings, and make sure you have a speedup. when you are ready stand in front of a point marker walk through and then press B button to activate your speedup as soon as the lightspeed shoes appear. your character will now run at half speed,but will board and grind faster to deactivate the glitch exit the level or select "No" after the race is over.
Chao duplication
In order to do this you need both sonic adventure dx and sonic adventure 2 : battle,a link cable and a gameboy advance.
Take a chao from either sonic game and put it in the chao transporter WITHOUT a gamepak in your gameboy. When your chao is transported it will be a copy and the real one will remain in the garden you got him from. Now load up the other sonic game with your gameboy still hooked up and go to its chao garden. Go to the transporter and you will be able to get the same chao you put in the gameboy. now you have 2 of the same chao. This trick is great if you want multiple copies of the gold and silver chao from Sonic DX.
NOTE:any animal parts of your chao will return to nomal in the other gareden but hero and dark chao stay hero or dark.
Invincible Amy
This only works in multiplayer. The first step is to die. Then, before you are re-spawned, Hold the B-button. If you continue to hold it, you will become invincible and kill any other player you touch.
This trick only works as long as you hold the B button down. If you release it, you will lose this glitch and have to die again to regain it.
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