This is the end of the game, and if you aren't using an emulator, then you are going to have to be good. You are only given one chance (since there is only one Golden Warpship after all) and you have no shields, so every hit does a lot of damage (four to five hits will kill you, depending on what you get hit by). Also, since you do not get a new password after collecting the last Piece of the Golden Warpship, if you die you have to redo all of the last planet again, which can be the most frustrating thing in you can experience.
The level is pretty much an automatically scrolling side shooter (kind of like a slow paced Gradius or R-Type) with large bubble like enemies floating around, which break into smaller pieces when hit. The scrolling last for a while, switching directions every so often. The final boss is an odd rock shaped creature with five eyeballs on the left side. Each eyeball must be destroyed, and can only be damaged when it is open. Basically you just have to avoid everything that comes flying at you and move in to hit the eyeballs when you have a clear shot. The screen will scroll a little ways back and forth in short jerky motions (it'll seem like the rock-thing is moving but if you watch the stars you'll see them move as well) and you can scroll up and down a little bit since the thing is bigger than a screen. Stay as far back as you can so you can maneuver around the blue orbs it fires and hold down the fire button when you line up with the eyes.
As you destroy the eyeballs it'll change colors and start shooting a little faster. When you are down to the last one the screen will begin to shake and it will become harder to hit. Keep at it, because once the last eyeball goes you win the game.