Monster Hunter 4 Ultimate is a game coming soon for the Nintendo 3DS . In the game it has been revealed that there will be a Sonic Costume for Felynes. There will also be a Guild Card of Green Hill Zone.
Along with the Costume is the Caliburn sword Felynes can equip. This is exclusive to the North American and European Versions. North America also gets a special edition of the game available for Pre Order. The game is set to release in Early 2015. Thank you and have a good day.