sickness. He learned greatly from the world's adaptation to the 3D gameplay of Super Mario 64 and he briefly experimented with rolling fields during the development of Paper Mario (2000) for Nintendo 64. During the development of Doshin the Giant for Nintendo 64, he eagerly proposed that it could become the first sphere walking game but the staff rejected such an exceedingly massive development for the game which was released in December 1999. GameCube demo The name Super Mario 128 gained permanent fame when reused for a new technology demonstration at the Space World event on August 24-26, 2000. This software was controlled by staff to show new gameplay mechanics and the processing power of the upcoming GameCube game console. Development of the demo was directed by Yoshiaki Koizumi, who would later become the director of Super Mario Galaxy. In the demo, a large 2D Mario spawned increasing numbers of smaller Mario figures, independently walking across a circular board, until the number of onscreen characters reached 128. The terrain in the demo was manipulated, rotated, and spun like a floppy saucer to show the physics engine software. GamePro declared Super Mario 128 to be one of the 15 most anticipated games of 2001. Regarding Nintendo's secrecy and lack of elaborate demonstration of the camera system, GamePro assumed that "The precautions are warranted as developer after developer aped the exact camera mechanism from Mario 64 for their titles." Koizumi said he spent much thought after the event about the "close to impossible" undertaking of productizing Super Mario 128 as demonstrated. Combining that demo's rounded surface with Mario's need to freely roam, Koizumi's next imagined groundbreaking objective was to demonstrate Mario walking upon a gravitational sphere. To even be able to attempt that, would require tremendous technological expertise, motivation, and achievement from a dedicated team and would not be undertaken until 2003. There had always been distinctly separate development of Super Mario 128 and Super Mario Sunshine, which Miyamoto considered to be similar to Super Mario 64 anyway. He said, "obviously we were doing work on the Mario 128 demo that we were showing at Space World, and separately we were doing work on experiments that we made into Mario Sunshine." At Space World 2001, Super Mario Sunshine was unveiled as the next in the Mario series, released in 2002. Nintendo commemorated the height of Super Mario 128 hype in the 2001