::::::::::::::::::::::::::::::::::::Tutorial::::::::::::::::::::::::::::::::::::::::::::: This program is not protected, so feel free to change it. If you submit it, please give me credit and email me. Help: To start, go to "prgm" and select MYSTERYN The calculator selects a random integer between a number (dependent on level) and its opposite (-). You try to guess it. Tips and Tricks: When it asks you to input a number type: (without quotes) "End" - Ends the game "AI" - Allows the Calc to play against itself. 4 levels of Intelligence.