CLOSE-IN is one of those abstract games where you move round the screen drawing a line behind you, while your opponent does likewise. The object is to avoid colliding with your opponent's or your own trail and to cause your opponent to crash by surrounding him.
The version from Pulsonic offers a bare minimum of graphics - two simple lines generated by the players and a set of five mazes which can be superimposed to provide added difficulty.
That such a simple game should require a 48K machine seems extraordinary, even with five screen configurations and a number of skill levels.
The game can be played by two players or against the computer. Two players will have difficulty manipulating eight directional keys each on the same small keyboard and the solitary player may feel aggrieved by the apparent ability of the Spectrum to start again from a new position in mid-game.
There are better variations on the theme available and if Pulsonic is serious about selling the game, it should consider finding how to use a joystick with it at least.