It's a FPS in a web browser. You can actually edit the map awhile in the browser, and watch the bot do whatever... HAHAHAHAHAHAHAHHAHA!
Link -> https://developer.mozilla.org/en-US/dem ... ananabread
Best if you use Firefox.
About -> https://github.com/kripken/BananaBread/wiki/FAQ
Here is a few screenshot!
Before, I selected the area I am going to edit.