7. Billy and Jimmy (Double Dragon)
One of the chief responsibilities that a bro owes his fellow bro is having his back in a fight. That's true whether in a bar, the rough streets, the forest, or a super villain fortress. Classic arcade brawlers are full of bros, though we believe none were better bros than Double Dragon's Billy and Jimmy.
The two young men, dressed in the toughest attire of the era, work together to save Marion, the foxy damsel in distress. After defeating the hundreds of thugs and saving the girl, their friendship is tested, as they must fight to win a kiss from the fair lady (obviously this was made before the groundbreaking "Bros Before Hos" legislation). But like the best of bros they got over it, reuniting for sequels, even teaming with the the broest of amphibians, the Battletoads.