The original Japanese versions of the games were known as "Yo-kai Watch Busters", and featured several references to the Ghostbusters franchise. However, the international versions either changed or removed many of these references:

• The B variants of Jibanyan, Komasan, and Usapyon were each redesigned to look less like the standard Ghostbuster uniform. However, the original outfits can still be seen in the intro.
• The final boss in the Japanese version was a Whisper-themed parody of the Stay Puft Marshmallow Man named "Whismellowman". The international version replaced him with a kaiju-esque character named "Whisped Cream". Additionally, Whismellowman's scene in the intro was replaced with Snartle and Sheen's scene from the Moon Rabbit Crew opening (which was itself exclusive to the Japanese versions) in the international version, and he was replaced with Whisped Cream on the title screen.
• The Blastersmobile was redesigned to look less like the Ecto-1, mainly by removing the roof attachments and repositioning one of the tanks to the back of the vehicle.
• The final boss theme included vocals in the Japanese version. These were likely removed due to making the song sound too similar to the Ghostbusters theme, though the song is split into five different files for each language in the international version, suggesting lyrics were planned at one point.