The town has a number of features to delight Sonic fans. The entrance houses a huge Sonic-shaped button, which when pressed causes Sonic to exclaim, “Welcome to Sonic Town!”. Visitors can talk back to their idol by using the many telephones that are placed around the town.

^ Sonic Team have supervised the design
On weekends Sonic and his pals take a break from battling Dr Eggman to star in a live stage show. Monitors are placed all over the town and provide visual entertainment for when the stage show isn’t running, with scenes from the Sonic games and Sonic X.
All visitors receive an exclusive Sonic Friend notebook. More Sonic merchandise can be earned by playing the UFO catcher games. The less adventurous can simply purchase Sonic items from the shopping areas.

^ The Sonic Town, in Koshien ban-cho, Nishinomiya-shi, Hyogo-ken
Full details can be found at the Sonic Town information page.
[Disclaimer: Information obtained through machine translation and so may be partly inaccurate]