This is my TI-BASIC entry for TI-Concours. It is a Mastermind game. Anyways, it comes up with a random number sequence(or a friend picks one for you) of 4 digits. Sometimes it takes a while to load the random sequence(because it checks to keep a number from repeating). You guess(numbers 0-9, no repeats) until you guess it right. For every right number you guess(in the right place), it displays a plus(not always in order). For every digit in the wrong place, it displays a -(also not always in order). When you get the guess right, it displays the code. At the top of the game screen, it displays how many guesses you have left. Here's the screenie:

Looks cool. I'm curious to see the other participants entries as well!