This is one very long level. It's all about putting your enemy crowd control skills to the test, as you'll be facing lots of enemies at once. The main guys to watch out for at the start are Two P, J and Slash.
Smash open the telephone booths you see, you'll usually find some weapons. When you see a little dog barking, Bill Bull, Wong Who and G. Oriber will charge on. There are several of them, and they tend to use their charge attacks a lot, so be ready with some jump kicks or special moves to take them out.
Once they've been defeated, head right to find a lot of barrels. These tend to have lots of points or health items in them, so destroy them all and take what's inside. Head on and you'll have to fight an Andore and Andore Jr, who'll charge on from opposite ends of the screen. If you get hit, there are a couple of more barrels you can smash to reveal a health item.
Once the Andores are defeated, head right and watch out for some barrels that the Mad Gears will kick at you. As you fight the Mad Gears here, barrels will roll across the screen a few times, destroy them to get some extra items.
Head on and you'll face several Poisons and Roxys, along with a few El Gados and Holly Woods for good measure. Keep throwing them into each other, as it's easy to get overwhelmed here.
Once you reach the toilets, there are several Js and Two Ps to fight, along with some other basic Mad Gear punks. Once they're defeated, Axl, Slash and some of their doubles will come on. Again, throw these guys into each other, as they can block and one of them can easily sneak up and hit you from behind.
Once you're out of the toilets, there is a trash can to smash, which usually contains a health item. Head on to find more large waves of enemies, and some extra background objects to destroy if you want some extra items.
The next section gets very busy. The main enemies to watch out for here are the Holly Woods, because they will be throwing molotov cocktails everywhere. Try to throw them away from you before they get the chance to throw their weapons, as you can often get them to burn the other Mad Gears around here.
There are a lot of Holly Woods around this place, but keep a look out for any breakable objects, as you should be able to get some health items if you need them. You'll then have to stop and fight several El Gados and Holly Woods, keep throwing them into each other.
Move on to find some tire stacks, these usually always have health items in them. Here you'll have to fight several of the basic Mad Gears, along with a few Js and Two Ps.
Axl and Slash will also appear, so try to clear out everyone before moving on. You'll want to do this as you'll then face your toughest challenge yet: Abigail. He'll run onto the screen, but you can immediately grab him to do some early damage.
If Abigail is far away from you, he'll yell out, turn red, and then run towards you, and try to do a powerful punch. Try to jump kick him before he can punch you. After a few seconds, some more Mad Gears will walk on to help Abigail out. Try to take them out as quickly as possible, and also try to keep Abigail away from you. He is able to throw you, and he doesn't have to be that close to do it.
Keep jump kicking him, but be wary of how much time you have -it's easy to run out of time if you've gotten through this stage without losing a life. Once Abigail is defeated, he'll get back up, but then cough up blood and fall down again.