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We started small ith a prototype, and we struggled with the idea with how best to use spherical worlds and how best to express that you're in space, and it just started to snowball from there. We finally had the opportunity with Super Mario Galaxy. For the longest time the idea kept bouncing around, and we kept trying to find a place to employ the spherical world idea in a game. Remember the Mario 128 demonstration? Where there were 128 Marios walking around on a flat surface? We originally wanted to make that surface a sphere but the team didn't have the chance to do that at the time. Miyamoto saw these tests, he finally said, "Okay, let's do it." And that was the start of what eventually became Super Mario Galaxy. I thought we could use this concept on GameCube, so a lot of the early tests had Mario walking around a globe of the Earth, over mountains and things like that. Miyamoto didn't seem to get on board this idea at first. I had the idea for spherical worlds, but Mr. IGN: So tell us: how did the whole Super Mario Galaxy project begin? Yoshiaki Koizumi: The Super Mario Galaxy concept began right around or even before the development of Super Mario Sunshine.
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