Sonic Live in Sydney was a 1½-hour live show hosted at the former SEGA World Sydney amusement park in Darling Harbour, Sydney, Australia. The show went through two incarnations during its run, including a live show with dancers and costumed actors in its first-year run, before being replaced with a puppet show during its last two and a half years.

Plot |

The show's first incarnation was set in an alternate timeline based around the Sonic the Hedgehog ("SatAM" version) animated series and the Sonic the Hedgehog 3 video game where Doctor Robotnik's Death Egg crashes in Australia instead of Angel Island, causing him to attempt a takeover of Sydney.

According to Phillip Einfeld of Phillip Einfeld Puppetoons (the company that was commissioned to revamp the show), SEGA felt that the live show wasn't dynamic enough and wanted to change the show's format to be a puppet show with some animatronics by late 1997 Despite the change in the show's format, the show's plot remained the same as its previous incarnation.