Route X (version), another iteration in the Route series, is likely a racing or vehicular combat arcade game similar to Route 16. The 'X' might denote a new element in the game's track design, setting, or gameplay mechanics. As with other versions, information regarding the developer or release date is unclear, but it suggests an ongoing effort to either enhance the original Route game or explore new iterations within the established framework.

Route X (version)

Route 16 (set 2)