The further you get in the game, the glitchier it becomes as if the devs just got lazy about half way through. The swap tiles puzzle have tiles that sit on top of each other and duplicate tiles. Sometimes the item you need to "find" and click on to proceed isn't on the list and the matching tiles bug out in most later levels. You can restart a few times to fix the matching tiles. Without these issues it is a long game with many levels that almost make it worth it until you begin to memorize where everything is since most scenes repeat.