Swordfight

Sword Fight never saw release during the 2600's heyday, but Intellivision Productions produced a limited number of professionally produced carts in 2000. These carts sold out quickly and due to copyright restrictions the ROM file has not released, making it still widely unavailable to most gamers. According to the Blue Sky Rangers, Mattel was trying to promote one player games and since Sword Fight was two players only it was shelved. A similar fate befell Sea Battle which was also finished around the same time.