Press the green flag and generate a huge cave. Please be patient while it loads (25600 squares). Scroll with arrow keys. Use turbo mode to make it faster. May be glitchy if you move before it loads (white empty spaces). It changes the cave 14 times after it loads to make it look much better, as the number in the top-left shows
Thanks to http://www.pixelenvy.ca/wa/ca_cave.html for tutorial on cave generation. http://scratch.mit.edu/projects/15785755/ for non-scrolling cave. Please hit love-it