Arcade game manufacturers employ a multi-faceted approach to tackle piracy and unauthorized copying of their games. One common method is the use of hardware-based security, such as custom chips or encrypted ROMs, which make it difficult to duplicate games without specialized equipment. Manufacturers also frequently update firmware to patch vulnerabilities exploited by pirates.

Legal actions play a significant role, with companies pursuing lawsuits against counterfeiters and distributors of pirated games. Some manufacturers integrate online verification systems, requiring arcade operators to authenticate games via the internet, ensuring only legitimate copies are playable.

Additionally, manufacturers often design proprietary hardware architectures, making it challenging for pirates to replicate the entire system. By combining technological, legal, and hardware solutions, arcade game manufacturers effectively reduce piracy and protect their intellectual property.