It just struck me that I have never heard of a Famicom equivalent to the NES' Nintendo World Championships cartridge. Surely such a game must exist, right?
Recca: Summer Carnival
???
Never heard of it? It is essentially the same as NWC but in Japan.
Recca is similar, in the sense that it was created specifically for competitive tournament play.
Recca was created for Tournament play but also mass produced and sold to anyone attending the festival, so not really in the same league as the NWC carts.....
The Rarest Famicom carts include the Rare Gold Carts such as Rockman 4 (Only 1 cart exists for each boss that was chosen from the public contest, these were given out as awards), Gundam Hot Scramble Silver Cart, Exed Exes Gold Members edition, Green Kinnikuman, Bridgestone Tailor Made (A Rare Cart used only in Bicycle shops to help customers outfit their cycle), Binary Land Gold, DBZ Gold, DBZ Silver, Obake No Qtaro Gold....... plus many, many, more titles that are incredibly rarer than a Grey NWC....
(http://s16.postimage.org/8tpivfaz9/1_Tailor_Made.jpg)
(http://s16.postimage.org/97quv0v2t/1_Exed_exes_gold.jpg)
(http://s16.postimage.org/e6jf6o579/1_Rockman4_gold.jpg)