The game is not an April Fool's joke, as it is announced in SEGA's free visual novel The Murder of Sonic the Hedgehog. It's up to us to solve the crime.
Über Sonic the Hedgehog's Murder
"It's Amy Rose's birthday!" She invited her friends to a mystery party on the Mirage Express to commemorate her birthday. Everyone attempts to solve the mystery together but something goes wrong. Is this really a game?
On a new adventure, join the diverse group of Sonic The Hedgehog characters!
New and Familiar Faces Question some of your favorite characters in order to discover what happened to Sonic. Play as a new character who just started his first day on the Mirage Express and meet the helpful conductor who is stepping down after many years on the train.
All aboard! Entirely hand-drawn landscapes and characters invite you to enter the Mirage Express's world.
The question is whether or not a Canon is canon. We believe in the power of imagination.*
*In other words, this game isn't created by Sonic Team, but everything can be canon in your head.»
