Super Mario 128 is a name given to a series of evelopment projects that were originally to be used only to create a sequel to Super Mario 64. What was displayed in the Super Mario 128 demo shown at Nintendo's Space World trade show was the rapid generation techniques that were later incorporated into titles such as Pikmin, and "sphere walking" technology used in The Legend of Zelda: Twilight Princess and Super Mario Galaxy. Other aspects include physics technology later incorporated into Super Mario Galaxy and Metroid Prime.