Arcade machines have evolved significantly from traditional coin-based systems to sophisticated cashless payment solutions. Classic coin mechanisms rely on precision-engineered slots that verify coin dimensions, weight, and magnetism before triggering credits. Modern systems employ RFID cards, NFC-enabled devices, and mobile payment apps that communicate with machine controllers via encrypted protocols. These systems typically involve payment terminals that process transactions through secure cloud-based platforms, updating credit balances in real-time. Many arcades now use centralized management systems that track payments across multiple machines while offering features like spending limits and automated refunds. The transition to cashless systems reduces maintenance costs and provides operators with valuable data analytics while offering players greater convenience through reloadable payment options.