Split Personalities is a sliding square puzzle game that involves piecing together the faces of famous personalities and politicians. The game presents the player with a blank grid to play with. The player controls a flashing cursor which can be moved at will over the canvas. Puzzle pieces are brought into play by pressing the fire button on a dispenser in the top corner of the grid. Pieces can then be slid around the screen. When a piece is moved, it can only be stopped moving by the walls of the play area or by another puzzle piece. A miniature preview of the completed image acts as a guide for the player and also highlights the piece of the puzzle that the player is currently controlling.