Fans of the blue video game hedgehog see their high-speed dreams come true on the 4.3-meter circuit of the battery-powered Carrera GO!!! 'Sonic the Hedgehog' set. The set allows Sonic and 'Speed Star', and Shadow in 'Dark Reaper', to whizz across the start/finish line at top speed! Junior race drivers can regulate Sonic and Shadow's speeds precisely using the hand-held controllers included with the set.