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Sonic Adventure Taikenban (ソニックアドベンチャー 体験版) is a demo of Sonic Adventure for the Dreamcast, that was available in stores in Japan.
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- It's based off the Japanese Release.
- It's dated March 3, 1999, nearly 3 months after the Japanese release.
- It seems to have been made around the time work began on international versions.
The title screen has extra text at the bottom which translates to Taikenban.
- There's extra text at the bottom of the character select.
- Sonic's demo ends after the Egg Hornet fight.
- Tails' demo is Ice Cap.
- Knuckles' demo starts with his intro, but after it finishes the game immediately loads Speed Highway Act 3.
- Amy's demo is the Hedgehog Hammer mini game.
- Big's demo is Twinkle Park.
- E102 γ's demo is Final Egg.
- Chaos 0 dies in one hit.
- Certain levels have been made easier.
- Those rising and falling spike poles were removed.