first, type in a number to have the program choose a random number from 0 to whatever you picked. then, try to guess what the number was. it will give you a hotter/colder response, and see if you can guess the number!
I give 100% credit to elektrikbubble, he made a similar game that I liked, so I made this. look at his projects here: http://scratch.mit.edu/users/electrickbubble/ (copy and paste the URL into the website bar) BTW: 0 sprites!!!