This game is a simulator of a real lie detector and is intended for entertainment, jokes, and pranks. Truth or lie? To determine whether a person is lying or telling the truth, they simply need to place their finger on the scanner and keep it there until the test is complete. The lie detector will then determine whether the statement is false or true, with a simple yes or no response. In our polygraph simulator, you'll find colorful fingerprint scanning animations, a heartbeat chart, and realistic sounds. All of these elements contribute to a sense of realism during the testing process.