Slice is a sinister puzzle game for the ipad (later iphone) platforms. The goal of the game is to clear layers of very sharp blades to push the open button. Push all the buttons in order and you win. While trying to open the puzzle you must not touch the sharp edges of the blades or you will get SLICED. When this happens, blood spills from your finger(s) onto the glass and the puzzle will reset. The blades only move in certain patterns that you, the player, must intuit. Often you will have to use multiple fingers to hold blades open while other fingers are used to manipulate other blades. This game is really about trying to figure out the hidden behaviors of the blades. Some of them can be rotated, some can be dragged. Some can be catched on move. Some cant stop. Some cant move at all. Some moves on condition. Different blade behaviors may be associated with any blade shape. This is scary and creepy.
The levels of difficulty come from the blade density, shapes, and behaviors. Each of the puzzles will introduce only one new behavior. The first level puzzle will be easy and only feature moving blades that click lock and stay. Subsequent levels will begin to introduce new behaviors, to teach you the new behavior. After a new behavior is learned then its parameters start to level toward more difficulty.