[westhanover]

The yellow tab was nonvolatile memory so season progress could be saved. This comment is a complete lie and should be disregarded.

[aeyes]

You could at least spend 1 minute on the Genesis Wikipedia article which includes several sources to verify my claims.

There you'll also find another case where Sega lost in court against similar reverse engineering done by Accolade to run their games on the Genesis without a license from Sega: https://en.wikipedia.org/wiki/Sega_v._Accolade