The junkyard is home to many Crow Bars. They like to wait on top of disposed vehicles and leap down to attack anyone that walks close by. A few Stranglers may try to strike before you reach the first Crow Bar. Wait for him to jump down to the ground before rushing in to knock him out with a flurry of punches. Keep advancing, one by one, up to each Crow Bar, but always let them jump down before trying to attack them. If you walk directly beneath them, they will reach down and strike you with their bar, and you won't be able to counter attack.
After you fight your way past several Crow Bars, you will eventually see nun-chucks on the ground. These will certainly help you, but you must remain on your guard. Around that time, a Crow Bar will jump down to the ground to attack you, a Strangler will likely appear from the left, and the very first Chain Gang will appear. He may arrive from either direction. Carefully keep all of these attackers at bay with your nun-chucks, and proceed when it is safe.
From this point on, Crow Bars may appear from either side of the screen, in addition to the ones you encounter on top of vehicles. A second Chain Gang will also join the fight at some point. He might appear on the same side as a Crow Bar, or the opposite side, forcing you to split your attention between them. Eventually, a final Crow Bar may appear from the left side and follow you all the way to the end of the stage where the boss is waiting. But as soon as the boss is visible on the screen, it will run away.
Boss: Tough Brothers[edit]
Also known as the Mad Brothers. These two large men initially start off on top of the van carrying Madonna. They will jump down to the ground when they see you, trying to pin you in between both of them. Despite their size, they are quite acrobatic, and can leap back on top of the van if need be. They also like to perform jump kicks towards your head. Take a note from their book and do the same. In fact, if they have you surrounded, you can perform multiple jump kicks off of both of them by holding the joystick in the opposite direction when you successfully strike one of them and pressing kick again to strike the other.
The brothers share one health meter, and it's not uncommon for this fight to drag on to the left, and take you back through half of the stage. Concentrate on persistent jump attacks, and regular kicks attacks when you are on the ground and about to be attacked. With the right timing, a standing kick can take the brothers out of their jump attack. Once the boss health meter is nearly depleted, one of the brothers will pass out, leaving you to fight the remaining brother alone. Without the assistance, the second brother should be easier to defeat. You'll have to walk all the way back to the van on the right if the fight pulled you away, before you get to see it take off for another stage.