polygons. The game made its overseas debut at the Amusement Trade Exhibition in the United Kingdom in January 1991, followed by its international release in February. A version of Rad Mobile was demonstrated at Japanese trade shows operating in Sega's R360 cabinet, but no record of a release has been found. Later the same year, Sega released Rad Rally, based on Rad Mobile but with changes and the addition of two-player multiplayer. Rad Rally was released in a two-seat arcade cabinet. In 1994, a port of Rad Mobile was released only in Japan for the Sega Saturn, as Gale Racer. Its release was much later than the arcade version due to the Genesis' hardware being insufficient to play the game. Gale Racer was directed by Tomohiro Kondo, who had worked on the Panzer Dragoon series, and designed by Takashi Yuda, responsible for the design of The Revenge of Shinobi. As part of the port, designs of the cars were changed to polygons in place of the original sprites. Reception and legacy At the time of its release, the arcade game was commercially successful in Japan. Rad Mobile was the fourth highest-grossing dedicated arcade game of 1991 in Japan, while Rad Rally was the year's seventh highest-grossing dedicated arcade game in Japan. Rad Mobile was generally praised for its graphics but criticized for its gameplay. Sinclair User stated that Sega "concentrated on the technology and forgot about the gameplay". Reviewer John Cook called the gameplay "dull" and stated there was little to do in the game other than stare at the visuals. John Cook also reviewed Rad Mobile in The One, stating that it employs "some astonishing effects, but little or no gameplay" and suggests GP Rider as an alternative, stating that "Some will enjoy [Rad Mobile] because it's loud and colourful, but afficionados [sic] will stick to GP Rider". Computer and Video Games gave a review stating that the game is "technically superb" and has "exceptionally realistic 3D" but lacks anything to stimulate addictive gameplay. In a March 1991 review, Ace described Rad Mobile as "high on visuals and low on gameplay". Beep! Mega Drive praised the way the car used the windshield wiper in the rain, and headlights at night. Gale Racer received a negative reception, with Horowitz stating that based on the talent behind the Saturn port, "one would have expected nothing short of the best home racing