Shigeru Miyamoto's guiding design philosophy behind "Super Mario 64" was to "include more details" than found in games prior to the Nintendo 64. Some details were inspired by real life. For example, the Boos are based on assistant director Takashi Tezuka's wife, who, as Miyamoto explained, "is very quiet normally, but one day she exploded, maddened by all the time Tezuka spent at work. In the game, there is now a character which shrinks when Mario looks at it, but when Mario turns away, it will grow large and menacing." "Super Mario 64" is also known for having more puzzles than earlier "Mario" games. It was developed at the same time as "", but as "Ocarina of Time" was released more than two years later, some puzzles were taken from that game for "Super Mario 64".