Io


 * Io is a moon in the Generation 1 continuality family.

Io is a moon of Jupiter. In real life, it is notable for its sulphur volcanoes. In the Transformers universe, however, it is the home of psychotic alien bats that transform into missiles.

Cartoon continuity
Blurr and Wheelie crashed on Io while delivering Metroplex's transformation cog to Earth, where they were attacked by the local wildlife. They were soon joined by Marissa Faireborne, courtesy of the locals' skills as kamekaze pilots. All three had to be rescued by the Autobots' current ride.