Lethal Weapon is a licensed NES-exclusive brawler from Ocean that's based on the classic buddy cop comedy. You can play as both Riggs and Murtaugh, each of which have their own health bar. You can switch out any time by walking off the side of the screen. Riggs is skilled with knives but Murtaugh has more powerful punches. Its combat engine is simple and emphasizes projectiles.
Although Joe Pesci is featured on the cover, he isn't in this game.
There's also a Lethal Weapon on the SNES but it's an action platformer.
Lethal Weapon is surprisingly fun. Its core combat is solid and has decent variety with its handful of projectiles. The graphics sport excellent color usage and the music is catchy techno. Its only downside is that it's really easy, mainly due to the pushover enemies.