Using the arrow keys, try making squares as many as you can(25 squares total). To start the game, click green flag, use arrow keys to position the marker, then press space to start the game. Honestly, I don't really know if 25 squares will be possible, but I know a fellow scratcher can crack this puzzle. Goodluck... I check it again and upload it for the 3rd time. I hope there's no more errors on the scripts.
