The Japanese localisation of Spot: The Video Game changes sprites of the NES and its controller into a Famicom - unusually, the Famicom has a golden color palette as if it had yellowed from overuse. Due to the image of a circuit board on the settings screen sharing a palette, this results in the circuit board also appearing yellowed. This also gives it an unintentional resemblance to the Shonen Jump 50th Anniversary Famicom Mini, released 26 years after Spot released in Japan.

Spot: The Video Game has a hidden credits scene that can occur after watching an all-CPU game, taking place on the game's victory screen. Virgin developers were not allowed to put credits inside games, only in manuals, so this was a way of hiding the credits in the game. The Japanese version adds credits to the game.