"Today’s games, you don’t see what the game is all about, what the goal is, and the controls are too complicated perhaps, and you’re being sort of needled and persecuted sometimes,” Iwatani noted. “The core game players want to have challenges, I understand that, but I think fun should be the first, most important point for any game."
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Gamasutra - News - GDC 2011: Pac-Man Creator Iwatani Discusses Female-Friendly Design Lessons
Fun, remember.