Trivia / Sonic Adventure 2

  • Milestone Celebration: Coincides with the 10th anniversary of the original game. As such, collecting 180 emblems will unlock a 3D version of Green Hill Zone.
  • Name's the Same: Sonic Adventure 2 has a level called Sand Ocean, which shares its name with a series of courses from the F-Zero franchise. Became Hilarious in Hindsight when Sega helped Nintendo develop F-Zero GX a few years later, which led to further deliberate Shout-Outs to F-Zero in Shadow the Hedgehog.
  • The Other Darrin:
    • Knuckles is voiced by Scott Dreier in this game, when he was voiced by Michael McGaharn in the first. However, their voices are similar enough, so it's hard to notice the change.
    • Tails, who was voiced by Corey Bringas in the first game, is now played by Corey's younger brother, Connor. Ditto for his Japanese voice from Kazuki Hayashi-to-Atsuki Murata.
  • Sequel First: Sonic Adventure 2 Battle was released first on the Nintendo GameCube a year before Sonic Adventure DX Director's Cut was released.
  • Shout-Out:
    • A lot of locations in the game are based on San Francisco, where Sega of America's headquarters are located. Mission Street and City Escape are based on the streets of San Francisco, Route 101 and Route 280 are the names of real interstate highways that both run through San Francisco, Radical Highway is based on the Golden Gate Bridge, and Prison Island is essentially Alcatraz.
    • There are posters in City Escape advertising a movie called Planet of the Chaos.
    • Other posters can be seen in City Escape directly advertising Phantasy Star Online.
    • It's possible to get a NiGHTS Chao.
    • When Knuckles gets an A Rank, he says "I feel good!", referencing the James Brown song "I Got You (I Feel Good)".
    • A hint in Pumpkin Hill reads "King of the Hill".
  • Urban Legend of Zelda:
    • There was once a widespread rumor that Chao apparently couldn't reincarnate more than two times. It's possible for them to reincarnate potentially 255 times due to data limitations.
    • While it didn't directly spawn the once-common rumor of a "Sonic and Knuckles RPG", there was some speculation that said (ultimately theoretical) project had been retooled into this game.
  • Writer Revolt: The director of Sonic Adventure 2 was so angry at the negative reception for Big the Cat in the previous game that he took personal offense to it and put Big the Cat as a hidden secret in every stage as a spiteful act of vengeance towards everyone. Ironically, fans are amused by his cameos (even those that hated Big) so much that they brought most of the cameos back in the PC version.
  • What Could Have Been:
    • Originally the game was only going to feature Sonic, Knuckles, and Eggman as playable characters. The alternate stages would be branching, a feature that would return in Shadow the Hedgehog.
    • An earlier premise of the story was Shadow and Rouge was from another dimension and destroying the world and it would be up to Sonic to stop them.
    • Shadow’s original name was “Terios”, which means “reflection of” (but in promotional material his name was Dark Sonic)
      • Rouge’s original name was “Nails”.
    • Early designs of Shadow show him missing an eye, and at one point, he had black eyes with a singular red pupil, Possibly scrapped due to being too scary or impossible to render on his face believably.
    • Sonic was originally going to wear his sneakers from the Genesis games, instead of his SOAP shoes which enabled him to grind. The demo released along with Phantasy Star Online still has these shoes (likely before the endorsement deal had been fully inked).
    • Some leftover data from the Dreamcast version shows that originally the there was a Chao Playground and Chao Library planned. The Library would allow you to create new files for the Chao Adventure VMU game, but the Playground's function is unknown. Geometry data for them still exists in the PC version.
    • In Battle, after getting an A-Rank on Green Hill Zone, Super Shadow and Super Sonic would have been unlocked in two-player mode. All that exists are the unlock message and character select descriptions, Although its possible that Metal Sonic uses the unused code for both of them.
    • The game's programmed to spawn a Goal Point in stages meant to be completed by Knuckles or Rouge should you hack the game so that you could play as the other characters within those stages, suggesting that there was going to be a sort of "free play" mode where you can play as any character in any stage.
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