Radar Rat Race (レーダーラットレース, Rēdā Ratto Rēsu) is a video game developed by HAL Laboratory released on cartridge in 1981 as a launch title for the VIC-20.The game is a licensed clone of Namco's Rally-X arcade video game and was released in Japan as Rally-X (ラリーX) from Commodore Japan K.K. In 1982, ports were released for the Commodore MAX Machine and Commodore 64.