Blue Sphere
Blue Sphere, known as Special Stage Mode in Sonic & Knuckles Collection, is an easter egg video game built into the Sonic & Knuckles cartridge for the Sega Mega Drive, accessible by attaching any Mega Drive…
Blue Sphere is an arcade developed by Sonic Team, released 18 October 1994 on Sega Mega Drive/Genesis.
What Blue Sphere is
Blue Sphere is an arcade game developed by Sonic Team and released in 1994. It was published by Sega. It is available on Sega Mega Drive/Genesis only.
The premise, in the publisher's words
Blue Sphere, known as Special Stage Mode in Sonic & Knuckles Collection, is an easter egg video game built into the Sonic & Knuckles cartridge for the Sega Mega Drive, accessible by attaching any Mega Drive game cartridge (other than Sonic the Hedgehog 2 or Sonic the Hedgehog 3) into the Sonic & Knuckles lock-on port. Blue Sphere is a collection of Special Stages in the same style and engine of those featured in Sonic the Hedgehog 3 and Sonic & Knuckles. If the cartridge that is locked on to Sonic & Knuckles is the original Sonic the Hedgehog (Sonic Classics, the Nick Arcade and Simon Wai prototype versions of Sonic the Hedgehog 2 will also work), then the full game of Blue Sphere is…
How it plays
It is played from a third person perspective. Its themes are action. It is a single-player game with no multiplayer component.
Where it sits in the Sonic The Hedgehog series
Blue Sphere is the 28th of 407 entries we hold in the Sonic The Hedgehog series. The next entry was Sonic & Knuckles in 1994.
What it launched against
Blue Sphere launched on 18 October 1994, within three weeks of DOOM II, Doom II: Hell on Earth, The Lion King and Super Punch-Out!!.
Released around the same time: DOOM II, Doom II: Hell on Earth, The Lion King, Super Punch-Out!!.
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All media
Parents
Quick answers
Blue Sphere — frequently asked questions
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