This game tests whether a ninja understands that case matters for names of variables (objects, functions, etc) for most programming languages. The list of names to be tested can be found in the code for the background object. Random case changes can occur to a single letter in the names. The Code Master's responses are also randomized based the response of ninja's answers. Are you up for the Code Matters Challenge?
The Two Costume method mentioned in the wiki page is at the heart of the script for testing the case of a letter (https://en.scratch-wiki.info/wiki/Case_Sensing)
