Sonic Adventure

Complete the following achievements to unlock Xbox Live Gamerscore points.

Talk to her in the Casino as Sonic after finishing Sky Chase.

These are unlocked for playing the game for a certain amount of time. Both awards can be used on either a male or female Avatar.

Defeat Chaos 6 as Sonic.

You must have 3 controllers and the 3rd one must have a memory card for this to work. Start up the game with all 3 controllers plugged in and get into Adventure mode as any character. Now press START on the 3rd controller. Something on the memory card's screen will come up saying "CHAO PUZZLE". Press START again to begin. It is a 3x3 slider puzzle with a random animated Chao doing something for a picture. Use the D-Pad to select the piece you want to move and press A to move it into the open area. You can also move two pieces at once. Press B for a different puzzle. Press START again to quit. There are 15 levels and every 5 you complete there is a congratulatory message from a Chao. After you beat the 15th it will start you at level 1 again.

Pause the game and hold X + Y to clear the game of the pause screen.

Defeat Gamma after finishing Sky Deck as Sonic or Tails. An alternate way to unlock him is to finish Twinkle Park as Amy and watch the FMAs after it.

• After obtaining the Light Shoes (and Crystal Ring to speed up the process), go to the Casino area and step on the button to make the rings appear. You can do this repeatedly for more starting rings. Note: The ring limit can exceed 999, but you cannot tell exactly how many you have. Listen for the extra life sound to keep track of them. When you are satisfied, go to Emerald Coast and complete the level without getting hit. You will be awarded with however many rings you collected at the end. Go to the Chao Garden, then the Black Market, and spend your hard earned coins.
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• Select E102 and go up the stairs in the hotel. Stand where the first ring would appear and position yourself so that you have a shot at the switch that makes the rings appear. Then, repeatedly shoot the switch. Each time you shoot it, you will earn a ring, which is a lot faster than having to charge a Light Dash.
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You can find some cool hidden Sonic Adventure arts made by SonicTeam themselves by putting the GD-ROM inside the computer's CD-ROM drive. Access the folder inside it and view the .bmp pictures there.