SEGA has announced Jet Set Radio will be released this summer as a digital download through PC, PS3 and Xbox 360. You can also enter a contest which will see your graffiti artwork land in the game. Eighteen winners will be picked, and each will also receive a copy of the game, a Bluetooth speaker system which is solar-powered, and game-themed accessories. The game, which was teased by the firm last week, was originally released in 2000 on Dreamcast. New shots are below.