PRESS
The game breaks cover
Shadow the Hedgehog is revealed around Shadow's Walk of Game appearance, beginning the public campaign before SEGA's formal announcement later in the month.
Development archiveSHADOW THE HEDGEHOG · 2005
A Year in
Motion
One chronology connecting the reveal, press cycle, magazine coverage, playable builds, Japanese site updates, collaborations, advertising, interviews and launch. Every entry points back into the archive where the evidence is discussed in depth.
How to read this
Dates here are publication, event or documented update dates—not guessed production dates. When a source only establishes a month or issue period, the chronology says so rather than inventing a day.
PRESS announcements & interviewsPLAY playable builds & previewsWEB official-site changesEVENT public appearancesMEDIA ads, trailers & print
Spring
Reveal → print explosion → E3
PRESS
SEGA formally announces Shadow the Hedgehog
SEGA of America and SEGA Europe announce the game and foreground branching missions, weapons, vehicles, more than 50 missions and Shadow's uncertain identity.
Press kit & official assetsPRESS
Planète-Sonic previews the branching premise
Contemporary fan-web coverage emphasizes Hero/Dark decisions and multiple possible conclusions.
Contemporary Sonic webMEDIA
Magazine coverage expands
EGM #191, GamesMaster #159, Nintendo Official Magazine UK, Nintendo Power and other publications carry screenshots, previews and interviews.
Magazine archiveWEB
Japanese official site opens
Sonic Channel records the launch of the official Japanese Shadow site alongside the E3 exhibition.
Japanese microsite reconstructionPLAY
E3: Shadow becomes playable
Press goes hands-on with an explicitly unfinished build. GameSpot and PSX Extreme document the game's combination of familiar Sonic movement, weapons and vehicles.
E3 2005 archivePre-release screenshotsSummer
Public demos → Japanese campaign expansion
EVENT
World Hobby Fair
The game is playable at Makuhari Messe. SEGA documents a Sonic/Shadow hand fan distributed to attendees who played.
Japan promotion & eventsPhysical promotionWEB
Japanese microsite grows
Black Doom, Doom's Eye and Sonic pages are added alongside Westopolis and a post-Westopolis event.
Microsite reconstructionAutumn
Beta coverage → collaborations → launch campaign
WEB
Japanese release fixed for December 15
The first-party update chronology records the Japanese launch date.
Regional release campaignPLAY
Planète-Sonic reports on an advance beta
The site explicitly warns that its tested version remains unfinished and may change before European release.
Contemporary Sonic webWEB
Promotional movie added
The Japanese site's screenshot area receives a promotional movie.
Microsite reconstructionEVENT
m-flo collaboration enters the campaign
The Japanese promotion links Shadow with m-flo and the TRIPOD BABY remix campaign.
Japan promotion & eventsWEB
SEGA Direct preorder bonus announced
The official chronology confirms a preorder-with-bonus campaign. The exact bonus remains a recovery target.
Physical promotionEVENT
ARTIMAGE NIGHT promotion added
The Japanese campaign connects launch-period promotion to ARTIMAGE NIGHT 2005.
Japan eventsPLAY
Planète-Sonic publishes beta impressions
Its writers describe being pleasantly surprised by additions beyond what trailers had shown—a specific contemporary reaction, not a claim about the fandom as a whole.
Contemporary Sonic webWEB
Another Japanese promotional movie
A second documented movie update appears immediately before the North American shipment announcement.
Trailers & commercialsPRESS
North American shipment announcement
SEGA's release-period copy leans on “Hero or Villain?”, weapons, vehicles, multiple endings and replay value, with a $49.95 MSRP and E10+ rating.
Regional campaignsPress assetsMEDIA
TRIPOD BABY movie and TV commercial
The Japanese site publishes the m-flo promotional movie and television commercial. Recovered Flash later exposed the original SEGA playlist paths.
Trailers & commercialsMicrosite recoveryLaunch
Site renewal → interviews → Japan release
WEB
The Japanese site gets its largest documented renewal
Ten characters, three stages, six weapons, four vehicles and three wallpapers are added. The recovered December Flash shell confirms a modular site organized around story, system, characters, stages, weapons, vehicles, movies and downloads.
Japanese microsite reconstructionWEB
Flash minigame and Iizuka interview
A Shadow Flash minigame and part one of Takashi Iizuka's developer interview are added.
Development interviewsPRESS
Iizuka interview concludes
The second half follows one day later. A December 13 Wayback capture also preserves the shell of the official Japanese microsite.
Development interviewsRecovered micrositeEVENT
Japanese launch and ARTIMAGE NIGHT
The Japanese release coincides with the ARTIMAGE NIGHT launch-day promotional campaign.
Japan promotion & eventsRegional campaignsPRESS
Weekly Sega Voice and soundtrack notice
Sonic Channel records a Weekly Sega Voice Iizuka interview and soundtrack sales notice.
Development interviews2006
The campaign doesn't stop at midnight
On January 20, 2006, the Japanese site adds Maria's character page and a Vehicle entry. The post-release update is evidence that the promotional microsite remained active after launch.
Continue into the microsite reconstructionGo deeper
Chronology basis
This chronology consolidates the dated evidence documented throughout Shadorux's Development & Promotion collection. Individual archive pages preserve the source links, provenance notes, uncertainties and deeper context behind each entry.