River City Ransom/Defeat Rocko

Downtown Sticksville
There's nothing terribly notable about Downtown Sticksville. It's just another gang hangout location. Fight your way to the right until you reach the gates which lead to the warehouse.

WSL Co. Warehouse Entrance
Like East Sticksville, the left portion of the ground is dug out and poses a danger to both you and your foes. Be sure to walk carefully around the pit by sticking to the strip of ground along the top. Fight your way over to the entrance of the warehouse and step inside.

WSL Co. Warehouse Interior
This is going to be the location of your next boss fight with Rocko. However, in order to make Rocko appear, you'll have to clear the warehouse of other riffraff. You start out on the right side of the warehouse, and must make it over to the left side (and potentially back again if more enemies appear on the right side.) To do that, you must jump on the boxes and use them as a means to reach the upper floor. Jumping straight up is often more successful than trying to jump horizontally.

Once there, you have to jump on to the boxes in the middle of the floor, and over the barrier that separates the left and right sides of the warehouse. Defeat the gang members waiting for you on the lower floor. If this is your first visit to the warehouse, this should make Rocko appear through the door to the left.

Take Rocko on when he arrives. As a boss, he takes substantially more hits to defeat. Try to knock him down and keep striking him as he rises in order to prevent him from landing an attack on you. If you manage to knock him out, he'll inform you that Blade is waiting for you in Sherman Park. Sherman Park is actually a bit of hike back. You'll have to start making your way back to the otherside of the warehouse, exit, and start running to the left, past Waterfront Mall, and almost all the way back to Grotto Mall.