- Circuit is a Micromaster from the Operation Combination and Micromaster Collection portions of the Generation One continuity family.
Circuit is a member of the Turbo Team, six urban-operations Micromasters who can combine to form Sixturbo. The Turbo Team fight alongside the Guard City team and other Micromasters to protect the Earth from the forces of the mighty Decepticon führer Scrash.
In an alternate-timeline/universe, Circuit, being a race car, is naturally the fastest member of the Turbo Team, and acts as a scout and a messenger. He's also dangerous on the road--he's not bad at driving, just really excitable. This drives Road Police crazy.
Also, he says he can talk to the wind. Nobody's quite sure what to make of this.
- (Note: Since the Circuit of "Operation Combination" had no bio information whatsoever, it is unknown if the "Micromaster Collection" bio is retroactive, applying to the original version as well, though many fans treat it as such.)
Operation: Combination story pages
Circuit never appears as an individual, only as a component to Sixturbo's robot mode.
Micromaster Collection Story
Like most of the Turbo Team, Circuit was infected with the Reverse Evolution virus, presumably though contact with Road Police, Glide, Neo-Wheel, or Discharge. The virus turned him into a Decepticon, and he went about causing random destruction with his teammates. Sireen tricked Circuit and the others into combining with him to form Sixturbo, then restored them all to normal with an antivirus program.
Later, Circuit felt a strange wind coming from the dimensional tear that brought the Multiforce into the six-teams' universe.
- Sixturbo (Micromaster Sixteam, 1992)
- The original version of Circuit was available only as part of a Sixturbo gift set in Japan. Aside from the Formula 1 race car mode, Circuit can form either arm of any of the similar-build Six-Teams (Sixturbo, Sixbuilder or Sixwing), though his nominal placement is as the left arm of Sixturbo. The original Six-Teams are considered among the more difficult Japanese Generation One pieces to find.
- Circuit (Micromaster, 2002)
- Sixturbo ID number:
- In 2002, the entire Sixturbo team was re-released as part of the "Micromaster Collection", in individual boxes with a number visible to show which mold was inside each box. For this release, all of the decals from the original version were replaced with paint applications. Circuit came with the left hand and shoulder-mounted missile rack to Sixturbo in this release.
- In every case of twelve Turbo Team Micromasters, two of them were solid-black-plastic "Reverse Evolution" Decepticon-allied variations. All six Micromasters were available in this manner.
- The connector socket for Sixturbo's shoulder is approximately 5mm wide, making Circuit compatible with Powerlinx ports, though the placement is awkward in most instances.