Make an interactive slideshow. Detecting and making background changes isn't limited to slideshows. How can you use this concept to tell stories?
Art
simple events, visibility, delays, advanced motion, simple messaging, text handling, simple costume handling, advanced costume handling, input/output, advanced messaging, simple loops, simple sound playing, functions, screen bounds, direction and turning, conditional loops, simple motion, program control, cloning, pen color, detect conditions, basic math, simple conditionals,