Linking puzzles are an excellent way of exercising the brains. Solve the difficult stages by creating links between the energized disks. Their position changes with every level and new obstacles appear out of nowhere to complicate the life of a logic game player. As if the lines drawn by the Mouse weren't a concern already, make sure to create a path that won't become impossible to overcome in the future. No other controls are necessary, only good attention to follow a crescent order given by the numbers. The time taken counts as less bonus and mistakes subtract from the score.