Time bomb

During the progress of Metal Gear Solid/The Twin Snakes Snake will inadvertently be handed a device known as the Timer Bomb by Revolver Ocelot. Small enough to fit into a back pocket, this is usually placed in a dummy item and micro-wired with enough plastic explosive to destroy a light tank. This bomb can be mistaken for for a keycard, magazine, or ration to the untrained eye. Nanomachines automatically detect the timing device, and can inform Snake about it. The time remaining until the bomb explodes can be seen in the inventory display, which is about 1500 seconds. Another time bomb can be found in REX's underground lair by using the Mine Detector. This one goes off after 30 seconds have passed. Both should be thrown away immediately. Colonel Campbell then calls Snake to tell that "that was a close one" after the first bomb.