Make an interactive slideshow. Detecting and making background changes isn't limited to slideshows. How can you use this concept to tell stories?
simple events, platformer basics, advanced physics, actor properties, platformer automations, platformer controls, functions, variables, basic math, simple loops, simple messaging, simple conditionals, miscellaneous, advanced costume handling, advanced messaging, graphic effects, delays, text handling, simple variables, expert physics, advanced motion, input/output, direction and turning, simple motion, advanced animation, simple costume handling,