Many more games in the free Scratch Programming Playground book! https://inventwithscratch.com/book Run this game program in your browser at http://scratch.mit.edu/projects/11646... With MIT's Scratch 2.0 programming environment, Al demonstrates making a clone of the "light cycles" or "tron" game using the Pen blocks. More Scratch screencast tutorials can be found at http://inventwithscratch.com