Press the Green Flag + Shift, control your volcano, and have fun! Variables: Eruption Height: Determines how high the lava will go. Eruption Type: 1 is spewing 2 is explosive Eruption Width Variables: Determines the width of the eruption How to make slider variables: You right click your variable and click ¨slider.¨ You right click again to set the slider´s minimum and maximum number. Then, in the editor, you make the variables interactive. See inside my project, for example.