You can always challenge yourself to create "something" in 32 bytes or 16 bytes. That is soo small, that sounds and graphics are rather abstract and it comes downto: does it produce something not random, noticable. For example, here is a paint program in 16 bytes : https://www.pouet.net/prod.php?which=62025 (the objective would be : create a program that allows painting on a canvas with the mouse) There have been ASM competitions with clear objectives in the past (http://www.hugi.scene.org/compo/) but these are long gone and seem to be replace with something like https://codegolf.stackexchange.com/ now