The goal in Edge is straightforward: move your cube from the start point of each level to the end point. Levels are composed entirely of other cubes and squares, creating a three-dimensional grid that you must navigate. You view the action from an isometric angle, and the grid is arranged diagonally. You can move your cube in only four directions, but pressing up does not actually make your cube move toward the top of your screen. Instead, you move diagonally up to the right, and pressing down moves you diagonally down to the left. Because of this orientation, using the WASD or the arrow keys requires a mental recalibration that can be disorienting. Fortunately, you can avoid this issue by using the corner numbers on the number pad (1, 3, 7, 9) or the analog stick on an Xbox 360 controller. No matter which control scheme you use, movement in Edge has a vague clumsiness to it. Part of this is because you are trying to "roll" a block around, but your momentum can be awkward at times. When you move to an adjacent square, you reach a tipping point when your cube turns over. If you push at this point, or linger slightly too long, you might tumble an extra square or two by accident. This could be no big deal, or it could lead to is an extra death or two. Fortunately, death is not punished harshly in Edge, so it's not a big frustration, and for the most part you feel comfortable moving through this cubic world.
