Full disclosure: I got this game on sale for .49 cents USD. It's, um, rather unusual. Do you remember being a kid and wanting to celebrate Halloween, but maybe your grandmother never did and just didn't "get" it? But still, she was your gran, so you'd get something, right?
That something didn't make any more sense that the Christmas candy corn or shamrocks...
There are a wide variety of puzzles here.
Holiday Jigsaw Halloween is a basic browser/Flash/mobile-app like jigsaw puzzle game. Solve various jigsaw puzzles made up from images that the "developer" stole off the Internet and used without crediting the actual creators, making this plagiarism, as well as an asset flip and a cash grab. An example of the "borrowed" uncredited/plagiarised artwork...