"Included is a single-game exhibition mode and a playoff mode (single-elimination or best-of-7) with the winner of the playoff mode collecting a trophy similar to the Stanley Cup.
The game had an NHLPA license but not an NHL license. As a result, the game included all player names and numbers, but not real team names or logos.
The Sega Mega Drive/Genesis version also included EEPROM battery saving, which allowed one to save lines and the ongoing Playoff, rather than use passwords as in the Super Nintendo version."
Source: Wikipedia, NHLPA Hockey '93 , available under the CC-BY-SA License.