The Cartridge Had to Prove It Belonged

A cartridge was more than a container for game data. It also carried a proprietary chip that could answer the console’s check. When the system powered on, it attempted a brief electronic exchange—a handshake—with that chip. If the expected response arrived, the console continued loading the game; if not, it stopped before play began.

That made the cartridge itself part of the console’s access-control system. Copying a game’s program onto another cartridge was not necessarily enough: the copy also needed the approved chip, or a way to reproduce its response. The check could therefore keep unauthorized releases from running even when they used the same basic hardware connection as legitimate games.

A Gate With Business Consequences

For the platform owner, the chip created a practical checkpoint. Games that passed through the company’s licensing process could be made to work with the console, while titles made outside that process could be excluded. It also gave the owner more control over what reached players and over the software sold for its hardware.

The tradeoff was that independent creators could not simply build a cartridge and expect it to run. Access depended on satisfying the platform’s requirements, turning a small component inside the cartridge into a gatekeeper for the entire game. Players experienced that decision in the simplest possible way: an unapproved cartridge might fit into the slot, yet the console would refuse to start it.