In “The Murder of Sonic the Hedgehog,” that starts with the character the players puppeteer. They’re new on the job on the party train, and we christen them with a name of our choosing.

In The Murder of Sonic the Hedgehog, Amy Rose is throwing a murder mystery-themed birthday party for all of her friends aboard the Mirage Express.

Sega will host the Sonic the Hedgehog 25th Anniversary July 22, 2016 at the House of Blues in San Diego from 6:00 to 10:00 p.m., Sega announced during the Sonic the Hedgehog SXSW panel.