Arcade game manufacturers prioritize compatibility with third-party peripherals through standardized hardware interfaces and communication protocols. Most modern arcade systems adopt universal connections like USB, JAMMA harnesses, or RJ45 ports, allowing accessories such as light guns, dance pads, and steering wheels to interface seamlessly. Manufacturers often publish technical specifications and SDKs for developers to ensure peripheral firmware aligns with game software. Robust plug-and-play protocols enable automatic recognition of certified devices, while extensive compatibility testing validates performance across hardware variants. Some companies implement certification programs where third-party manufacturers submit products for quality assurance checks. This ecosystem supports innovation while maintaining reliability, ensuring players experience consistent performance regardless of peripheral brand.