I'm usually the guy who gets Famicom everything cause I'm a bigger fan of Famicom overall but... the Nintendo World Championships stuff is so definitively a North America/NES thing, like they didn't even have the NWC in Japan, there is no NWC Famicom cart, and the entire aesthetic of it is based on the NES package design and branding from that era. The gold cart is half the reason for the notoriety here! Even though the JP version comes with Famicom controllers I suspect they're just trying to clear them out since they can be purchased separately.Yeah, definitely importing (if I can). This looks so much better than the NA version (big surprise). Like what am I going to do with a replica cart that doesn't work? At least I can use those Famicom controllers.
In this rare case, I think the NES version is the definitive release.