The puzzles are divided into ten different types, varying in difficulty by type and level. All puzzles are mouse driven. I found every puzzle type to be interesting although some are definitely better than others. Among the better puzzle types were Focus Point in which pieces of a picture are swapped to assemble the original image, Rota-scope composing a picture by sliding tiles on concentric rings, Jesse's Strips using strips of varied lengths, arranged on different trays to create a picture, Outer Layer where you replace the surface of an object by attaching the pieces and Overlap where you reveal an image by placing overlapping fragments. There are a couple of puzzle types, Find and Fill and Image Hole, that are really just an exercise in getting the mouse pointer in exactly the right spot, always a frustrating task.
Every puzzle has interactive instructions available.
There are two ways to play Pandora's Box . The quick and easy method is to choose 'Puzzles only' from the menu and then simply select your favourite puzzle type. Or you can follow the story. It's not much of a story and, after I solved 220 puzzles without using any hints or free puzzle tokens, I was a little miffed at the flat ending, too. After all that effort, I was expecting at least a little fanfare.