> Sega of Europe has confirmed that the oft rumored about Hikaru arcade board does exist.  Also, we've learned that "Hikaru" is the codename for the double Naomi board, which consists of two Naomi chipsets on a single board.  The Hikaru board is said to have twice the processing power of a single Naomi board, hence it's use in the graphically intensive Brave Fire Fighter.
     > In a related story, Sega's newest arcade game, 18 Wheel Pro Trucker, does not use the Hikaru board.  This realistic truck driving game uses a single Naomi board so conversion to the Dreamcast is probable.
~ Shinobi ~  (source: Daily Radar)