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delays, simple loops, basic math, simple variables, functions, advanced motion, simple events, variables, visibility, cloning, advanced costume handling, simple sound playing, miscellaneous, simple conditionals, advanced events, input/output, layers, screen bounds, direction and turning, music and instruments, detect conditions, advanced loops, simple motion, graphic effects, expert math, resize actor, text handling, simple messaging, program control, string handling, advanced math, conditional loops,