Name: Tecmo Super Bowl
Platform: Sega Genesis / Mega Drive
Region: USA
Media: Cartridge
Controller: Gamepad
Genre: Sports, Football
Gametype: Licensed
Release Year: 1993
Developer: Tecmo
Publisher: Tecmo
Players: 1 or 2 VS; CO-OP
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What do you get when you take one of the greatest sports games for the platform and add improved graphics, more players, more plays and lifelike AI? You get Tecmo Super Bowl, a superb football game that is the precusor to any modern day football game. Choose your team from the 28 NFL teams (this is 1991) with real players from those teams and the ability to sub in offensive players! Unlike its predecessor, in Tecmo Super Bowl, you can pick your plays from a playbook for a total of eight different plays! You can also save your season stats as the season goes on, along with your game via battery. All your favorite NFL players are here. But on some eye black, don your pads and get ready for bone-crushing football action!

Gameplay:

Tecmo Super Bowl expanded on the features used first in Tecmo Bowl. To do this, TSB replicated certain aspects of the National Football League's version of American football.

Every team in TSB was modeled after a real life NFL franchise. The teams used the same logos and the same city affiliations used by the NFL. As in real life, each team had its own offensive playbook, but unlike real life the defense must simply chose from the offensive team's plays in an attempt to anticipate specific plays (thus, there are no specific defensive plays or formations).

In the original NES Tecmo Bowl, each team had 20 players on its roster, with nine players for offense, nine players for defense, a kicker, and a punter. In Tecmo Super Bowl, each roster had roughly 30 different players. Each team had eleven defensive players, which could not be substituted, nor injured. Each team had seventeen offensive players, which included eleven starters and six substitutes. At any given time, eleven players were on the field for each team, consistent with NFL rules. A kicker and a punter were also on the roster.[2][3]

In addition to using real teams and players, TSB incorporated the full-length 1991 NFL regular season schedule for the game. The playoff format, including the Super Bowl and the post-season Pro Bowl games, was also used.

Tecmo Super Bowl retained the arcade-style football gameplay of the original which included the ability to break tackles (many players had "94" hitting power ratings, giving them the ability break any non-sliding tackles). However, the game added new features, such as statistics tracking that included All-Time NFL season records, expanded and editable playbooks[4], the ability to substitute players, varying conditions of players, fumbles, and player injuries. As it had previously, the game used cutscenes for important events like touchdowns and halftime shows. Tecmo Super Bowl also added cutscenes when injuries or big plays occurred.

http://www.gamefaqs.com/console/genesis/home/586525.html
http://en.wikipedia.org/wiki/Tecmo_Super_Bowl