Arcade machines employ sophisticated mechanical and electronic systems to securely process coin and token-based payments, ensuring reliable revenue collection while preventing fraud. The security begins with the physical coin mechanism, which uses precise measurements of diameter, thickness, and weight to validate authenticity. A series of levers, springs, and optical sensors work in concert to detect and reject slugs, foreign objects, and counterfeit coins. Genuine coins are routed through a maze-like path where they are measured by infrared beams and weighed against pre-calibrated standards. For token-based systems, proprietary tokens with unique patterns or magnetic properties are used to prevent easy replication. Modern systems incorporate microprocessors that can track coin values, manage credit counts, and even detect patterns of attempted cheating. The entire mechanism is typically housed within a locked, hardened steel box to prevent physical tampering. These multi-layered security measures, combining physical barriers with electronic verification, have made arcade payment systems remarkably resilient against theft and fraud throughout decades of operation.