So, I did a little digging into Rolando & found the "worlds_list.xml" file with 18 levels commented out. Not only that but, the associating .plist files, for these levels, are no longer present as either (each level has it's own .plist file). For these cut levels, the level select image is "empty_level_thumbnail.png". Man, there really seems to be enough cut levels for a sequel/ expansion pack. I've converted the .xml file to a .txt in order to post on here. Keep in mind that this lists EVERY level so, it contains some spoilers. Rename it back to a ".xml" file if you want to see the commented-out levels clearer. I'm also attaching the "empty_level_thumbnail.png file as well.