TMNT II provides a gameplay style followed upon in two other games, The Manhattan Project & TMNT: Turtles In Time (SNES)
In their efforts to rescue their shapely journalist friend April O'Neil, the ooze-spawned turtles fight their way through the Foot Clan, as well as the other evil characters we've come to know through the popular television series, in a variety of different levels, dodging shurikens, escaping boulders, and destroying Shredder's evil clansmen one at a time.
There are 3 Modes, 1P Mode, 2P Mode A, and 2P Mode B, "friendly fire" turned on or off respectively.
If you decide to play TMNT II: The Arcade Game on Two-Player mode, you won't be disappointed.
The cooperative beat-'em-up action is highly addictive, alongside other great Nintendo titles; River City Ransom, Double Dragon I-III, and Mighty Final Fight for starters.
I would recommend seeking this game at your local classic-game retailer, or through an online auction website, if you're a fan of the Teenage Mutant Ninja Turtles series.
Also keep an eye out for TMNT: The Manhattan Project on the NES, and TMNT: Turtles In Time on the SNES; the absolute best that the TMNT series has to offer.
Blessed Be