Okay when you type a cheat like say gravity modifier for example defaultmarble.gravity=[any number between 1-9]; the higher the number the more gravity the lower the number the less gravity if you put zero as the number you would have mid air zero gravity total floating. sam with the speed or jump cheat code the higher the number the more speed or jump power. P.S. [I do not advize using zero on any becaus it makes it extremley hard to control the marble]