MARU-CHANG från Japan har på sin hemsida maru-chang.com mycket information om Nintendos koder på hårdvaran. Så här svarade han när jag frågade honom om GPS:
Hi! SuperGamer-san. I'm MARU-CHANG from Japan.
I don't know GPS because there is little information on the game of Europe in Japan.
Even an unfamiliar code is not mysterious because it has not been refined unlike now in old times either.
However, there might be a bug and a regulation, etc. when thinking about other reasons.
I just recalled Photosensitive epilepsy(PSE). PS of GPS might be "Photosensitive"?
Before, The accident of PSE happened in UK.
Though I don't know the details, as a result, the attention of PSE was added to the manual in Japan from 1992.
The accident happened in the television program in animation, and PSE came to be known also in Japan in 1997.
In a virtual console of Wii, it's changed for PSE by some titles(ex: StarFox64).
The change might have been done from of old in Europe.