- Start - X10 Y16
- Like Area 6, this area starts off right away with the entrance to Corridor 8. However, it is recommended that you explore the area below first and come back here later, since Corridor 18 is easier and you can get some good stuff along the way.
- X10 Y18
- X12 Y18
- X13 Y19
- You may be for a bit of a surprise when you encounter, not one, but two blue domed machines that usually serve as labyrinth mini-bosses. After fighting them for as long as you have, you should have mastered the technique to defeating them as regular enemies. Take care of them and continue south. Ignore the large arrow and explore the room to the east first.
- X14 Y20
- X13 Y21
- Fight that bats that patrol this room. Once they're gone, hold off on following the arrow's advice, and open the door on the right side of the room if you wish to find a Blue Lander check point or receive a password. Then when you're done, continue south.
- X12 Y22
- X12 Y23
- X10 Y22
- When you arrive at this barrier, you should proceed north, which is the fastest path to the entrance to Corridor 18.
- X10 Y19
- The entrance to Corridor 18 is just beyond the door to the right. But before you visit through the door, explore the room to the left first.
- X9 Y19
- X11 Y19
Continuing the biological theme, you will fly over a series of veins. The corridor starts out with spinning blue ships that shoot bullets at you. These blue ships are joined by the other type of blue ship that fires lasers. The lasers are much more damaging and should be avoided altogether. Soon asteroids will join the fray, both green falling ones and the circular formations.
The ships will stop, but they are soon replaced with manta rays as well as both varieties of mushrooms, the slowly floating kind and the quickly falling kind. A blue particle blob will pass by as well. Soon, the action will reduce to green asteroids and floating mushrooms. Two particle plants will pass by, exploding just before they reach you. Then only green asteroids appear before the corridor boss arrives.
This boss' name is Grimgrin. He moves about the screen in a particular pattern that you should become familiar with. He will fly all around the middle of the screen in a manner that allows you to avoid him if you remain on the side. He fires eyeballs and bullets at you, none of which are a tremendous threat. The most dangerous thing you can do is remain underneath him when he flies to the bottom of the screen. That is why his pattern of motion is so important to pay attention to. This fight won't be difficult unless you are impatient and remain where you shouldn't in an effort to get a few more shots in on him. Use a weapon with good range like the Wave Attack, Fireball, or Repeller. Get as many shots in as you can while he is still high in the screen. Your newly powered up Hyper Lasers make a good choice of weapon to use against this boss too. They are wide and make it much easier for you to hit Grimgrin from the side without needing to sit directly below him.
As you attack him, the four eyeballs around his center eye will be destroyed, first the bottom pair, then the top pair. He may appear close to defeat when he is down to one eye, but don't be fooled. When he loses this eye, he enters a final phase where he fills the screen with bullets and eyeballs until he is defeated. Don't panic, and continue to pay attention to the pattern of his motion. He will release so many eyeballs that you will likely create a lot of item capsules as a result of shooting at them. Assault Grimgrin with patience and you will eventually defeat him. Then you'll fly back to Area 8 where you'll recieve an upgrade to the Fireball weapon.
Return to Area 8
Make all your way back to X10 Y16. If you visited the room in Area 0 which gives you the hint about Area 8 in X13 Y16, you will learn that you need to turn off any special weapon by setting the weapon selection on the sub-screen to "NO USE", and fire (with the button). This will cause the corridor gates to open. Jump in and take on Corridor 8. When you return, you will earn the next Bullet Shield upgrade, which will boost it to Level 3. While it gets bigger and faster, it's still not spectacular against enemies that require a lot of hits, but it is more effective against very basic enemies.
Green shot blockers will come out to greet you as circular asteroid formations appear. By the time the second formation appears, both blue and red spinning ships will join the fight. Choose your moments to approach and remove the green shot blockers carefully. Before long, you will be flying over large eyeballs, and floating mushrooms will also appear. This will continue all the way until the end of the corridor. If all this isn't enough, laser shooting ships will appear near the end.
Now is the time that you want to start giving the Enemy Eraser weapon some serious consideration. The Enemy Eraser can even clear out the green shot-blockers and the red asteroids that lead in the creation of the asteroid circles. With the screen constantly filling up with enemies, and the green shot blockers getting in your way, it may become difficult to defend yourself from all the threats present on the screen. In that case, switch to the sub-screen and arm the Enemy Eraser. Do not fire them off rapidly. Continue to fire your regular gun and wait for the screen to fill up with enemies, and then use the eraser once. Then wait once more for the screen to become busy before using another. You shouldn't need to use much more than 20, a single packs worth, to make it through the corridor in once piece. You may even obtain more erasers through an item capsule dropped by a defeated enemy.
After fighting through Corridor 18, it shouldn't come as too much of a surprise that the boss of Corridor 8 is another Grimgrin. This one is red, with more health and his projectiles are harder to destroy. The same exact strategy applies: pay attention to the pattern of motion that he follows, and get out of his way when he approaches the bottom of the screen. Once again, Wave Attack and the newly powered up Fireball will help you. The Hyper Laser will destroy both the eyeballs and the bullets with ease to a point where Grimgrim's projectile attacks won't even touch you due to the laser's wider distance from you. Keep your distance and pour on the firepower until he is destroyed. You will earn a new key and when you return to Area 8, you will get the final upgrade for the Bullet Shield. Then you're ready to return back to Area 0 and make your way to Area 9. The entrance to Area 9 can be found at X9 Y8.