With over 500 questions to choose from there will always be a question to catch them with! If they’re lying the machine will let you know, but if it’s not sure and flashes amber you need to ask them the question again.
If the machine catches someone lying a siren sounds and the red bulb flashes, you can’t miss it! If you tell a lie and get caught by the Truth Detector it means you lose a life. The winner is the last person left with lifecards.