I highlight his answer about who Nintendo considered as the most dangerous competitor between Sony and Sega cause it show off well Nintendo's mentality as a first-party driven console manufactuer (a third-party driven console manufacturer like Sony would never ever dream to publicly declare third-parties as the direct rivals):
"We could say that because 64 is bigger than 32, the Ultra 64 will have no rival hardware! [Laughs.] In Japan, with 90 per cent of the current market, Nintendo does not have any rivals. At any rate, Nintendo does not have any rivals for the hardware, but as far as software is concerned, our rivals are the licensees."