For the brief it says:
Key points:
"to create a piece of communication that celebrates / is inspired by this and that could be shared and showcased throughout the year. The work could live online, in print, in a physical space or anywhere else for that matter."
"you are free to respond in any media type including (but not limited to) video, print, audio, online."
Target Audience:
"Sonic fans, 18 - 44, some of whom have been fans since the launch."
"6 - 12, boys who play current games and will be less familiar with Sonic's heritage."
Mandatories:
"no formal mandatories but you can include them."