The control panel is the lower portion of the screen. The buttons control game play and are activated by clicking with the left mouse button. Each button also has at least one associated keyboard key as shown on the button face. Numeric displays show the number of robots remaining alive at the current level, the value of each robot when destroyed, the current score, the current level and the remaining antimatter/safe teleport count. The indicator light above the Q button turns yellow when a demo game is active. The indicator light above the options button is green when either wave or MIDI sound is turned on. The blue robot to the right of the robot count changes to different objects when a secret code is activated or bonus points are awarded.