An additional relief pitcher mode allows the best of 7 World Series type of play for two players.

[2] There are four fictitious teams (Boston Bashers, Houston Dusters, Los Angeles Speeders, and Chicago Strokers) to choose from with its own special strength.

After winning the playoffs in arcade mode, it shows the final box score with a special game over message inside of it.

[4] The commentary in this game is done by legendary baseball announcer Jack Buck.

[2] RePlay reported Relief Pitcher to be the second most-popular arcade game at the time.