Official Developers
  • AM2
  • Camelot Software Planning
  • Capcom
  • Climax
  • Dreamcast Europe
  • Dreamstone
  • Game Arts
  • Hudson
  • Konami
  • Namco
  • Nintendo of America, and Japan
  • Rare
  • Sega
  • Sega Europe
  • Sega Japan
  • Sega World
  • Sonic Advance for Game Boy Advance
  • Sonic Team
  • Sony Computer Entertainment
  • Squaresoft
  • Team Andromeda
  • Tecmo
  • ToeJam and Earl Productions
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