Complete section corresponding NSM done with 3-way
Complete section corresponding NSM done with Rocket Launcher
Make sure to take the 3-way gun with you into this level (it looks as its name suggests.) Anyhow, once you land, shoot down the barrier.
At this point, you have a choice: if you're a bit shaky with your bionic arm, continue with the 3-way. If you're confident in your bionic skills, then A+B+Start out of the level, grab your rocket launcher, and come back in.
Anyhow...run right. Grab the upper platform and get up on it. Then keep going right under the next platform and getting up.
Once at the top, run right without stopping and fasten yourself to the top of a straight-up grapple. Wait for the tractor to pass under you, then drop down and run to the right. Fasten up when you can, and run to the right again. Watch the top. It changes from white rock to red rock. When it's red rock, grab straight up and get up onto it.
Hook up again onto the green platform. Run left, pass one platform, then hook straight up onto the next one you see. Hook straight up several times more until you see a transformer on a wire. Hook onto that, swing off, and grab the next one. Swing off that, and grab the next one (Note: you can land on the platform on the middle for a breather, but it's harder to get back on the transformers.) Swing off that one, then grab the next one. When you swing off this one, don't grab the next one; grab the one after that. See the pictures.
The boss is another giant robot. You should kill him since you have such a weak gun. That's it!
Well, actually, that's not it. You have to talk with Super Joe for a very, very long time. Then, that's it! That's right: you get no bonus of 10 bullets, and you get no special item. Well, at least you talked to Super Joe...
Note: At this point, you can go to Area 18 if you wish, but there's nothing useful there.