Ikari Warriors © 1987 SNK Corp. of America.
North American release. Game developed in Japan. See the original Famicom version for more information: "Ikari [Model KAC-IK]".
Description from the back cover:
You and a friend are warriors with secret orders to invade an enemy nation. Working together as a team, you must fight for survival against a relentless onslaught of enemies!
GAME ID: NES-IW-USA
Released in May 1987 in the USA.
Game's ROM.