"Super Mario 64" features more puzzles than earlier "Mario" games. It was developed simultaneously with "" but, as "Ocarina of Time" was released more than two years later, some puzzles were taken for "Super Mario 64". Information about "Super Mario 64" was leaked in November 1995, and a playable version was presented days later as part of the Nintendo 64 premiere (then known as the "Ultra 64") at Nintendo Space World. At this point, the basic controls had been implemented and the game was 50% finished, featuring 32 courses, though only about 2% of mapping was complete. Miyamoto had hoped to create more courses, but only 15 courses could fit. According to Nintendo of America chairman Howard Lincoln, Miyamoto's desire to add more was a major factor in the decision to delay the Nintendo 64 release from Christmas 1995 to April 1996. Nintendo president Hiroshi Yamauchi later commented, "Game creators can finish games quickly if they compromise. But users have sharp eyes. They soon know if the games are compromised. asked for two more months and I gave them to him unconditionally."