Arcade game machines in crowded arcades face significant challenges from electromagnetic interference (EMI), which can disrupt gameplay and damage sensitive electronics. To combat this, manufacturers employ several strategies.

First, arcade cabinets are often built with EMI shielding materials, such as conductive metals or coatings, to block external interference. These materials absorb or reflect electromagnetic waves, protecting internal circuits.

Second, proper grounding is critical. Machines are connected to grounded power sources to dissipate unwanted electrical noise, reducing the risk of interference.

Additionally, arcade operators regularly maintain and inspect wiring and components to ensure optimal performance. Loose connections or damaged cables can exacerbate EMI issues.

Finally, modern arcade machines use filtered power supplies and shielded cables to minimize interference from nearby devices. By combining these methods, arcades maintain smooth operation even in high-traffic environments.