Well this is the old level 4 walkthrough but it should be helpful. Petoe has added some extra keycards to the ? Dome so they're not listed in this walkthrough:
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4B. L4 = ? DOME
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* 6 Keycards
* ITEM: Steel Plate (you can cross small gaps with it)
* 4 LEPs = Full LEContainer
* 1 E-Tank
This is the most confusing level in the game and the smoke on the main floor doesn't help at all. If the smoke gives you headache, you can "cheat" by turning off translucent layers. Another thing you should know is that all the keycards are on the first floor (F1). Most people get stuck because they don't realize that all the broken and cracked computers on B1 floor are bombable. There's totally 4 floors in this level:
F2 - the girder floor,
F1 - the smoke floor,
B1 - downstairs and
Cave - Dome Cave. Now you know the basic info about this level, so let's get started.
From the entrance, go right, then 2 screens to north, 1 screen left, 1 south, 1 left, 1 south and 1 right. You're back in the starting screen, but this time you can go up the ladder to F2 (the girder floor). Follow the girder to the right and soon you should see a ladder so go down and 1 screen to the left. Open the chest to get your first keycard (1). Go back to right and roll the rollable thing you see to south to get over the gap. Now return to the ladder which took you up to F2. This time go past the ladder to the right and then up. Go down the stairs to B1.
When in the room with the jumping enemies, bomb the computer and go north. Choose the left path and keep going to north. Before the dead end go to right, north and right and down the stairs to the Dome Cave. In the cave, go south a screen and down the stairs, then go back north and up the stairs. Go right and north. The stairs there will take you to B1. When on B1, go north and right and go to the computer. It opens the SHUTTER 1. Now return to the room with the jumping enemies and the computer you blowed up. From that room, go south a screen. Blow up the cracked block in this small puzzle room and go left. Kill all the jumping enemies to open the shutter and continue to left. Go down the stairs to the Dome Cave. Down there, go 2 screens to right, up the stairs and back to left, then north, right and kill all the enemies to get your 1st LEP. Exit the cave to B1.
When back on B1, blow up the computer that's on the left and go 2 screens north. Then go right, south and right and up the ladder to F1. Open the chest to get your second keycard (2). Now return to the room where you bombed the computer and go 2 screens left. Kill all enemies to get more bombs and blow up the computer on the left to get to a room with an E-Tank. Take it if you need it and return south and right. Kill all the enemies to open the shutter and head north. Open the locked door and go north again. Go down the stairs to the Dome cave.
When down in the cave, walk left a bit avoiding the traps, then go north, left and north. Go to B1. When on B1 floor, go up again to floor F1. Go right a screen, then 2 screens north and 1 left. Go down the stairs. Go south a screen and down the stairs again to the Dome Cave. When in the cave, go right, south, right, north, right, south, up the stairs and back to north. Kill all the enemies to get your 2nd LEP. Now go back the same way you came to get back to the northwest corner of F1. When back on the smoke floor, go right, 2 screens south, 1 screen left, instead of going down the stairs go 1 screen south, 2 screens to right (roll the rollable thing to right to get over the gap) and then north. Open the chest to get a keycard (3). Now return to the entrance of the ? Dome.
From the entrance, go right, north, right, south and down the stairs to B1. Ignore the locked door and go left, solve the "puzzle" and go 3 screens to left. Then 2 screens north, 1 left, 1 north, 1 right, 1 left, 2 north, 1 rigth, 1 north and 3 screens to right. Go to the computer to open SHUTTER 2. Now go back left 2 screens, then 1 south, 1 left, 2 south, 1 right, 1 south. Walk right then go 2 screens to north and through the door to right. Go up the ladder. When on the smoke floor, open the chest to get a keycard (4). Go right a screen and roll that rollable thing over the gap. Return to the entrance of the Dome.
From the entrance, go right, north, right, south and down the stairs to B1. Open the locked door and go right, solve the block puzzle which shouldn't be tough and go up the ladder to F1. Go to the computer to open the shutter, then move the rollable thing over the gap on the middle of the screen and go north a screen. The shutter closes behind you. No worries though. Go to downstairs and north a screen. It's the miniboss from Iso Dome. Piece of cake now. Destroy it and go north, then down the stairs to the Dome Cave.
Back in the cave again (you must love this cave). Go north, then up the stairs and left, then north, down the stairs and right. Go to B1. When on B1, there's no where else to go than up the ladder. When you're on the smoke floor once again, go south and left and open the chest to get another keycard (5). If you want to get some zens, from the chest go right and 3 screens to south. Otherwise get back to the Dome Cave. Back in the cave, return to the stairs where you came down after beating the Iso Dome mini-boss enemy, but don't go up. Keep going south instead. Then 2 screens to left and 1 south. Go to B1. Go 1 screen to north and up the ladder to the smoke floor. After that go right a screen and south a screen. There's a hidden keycard (6) under the catwalk. Get it and find your way to the B1 floor again.
Now that you finally have all the keycards of ? Dome, get to the southeast corner of B1 floor. When you're there, don't go up the ladder but go 1 screen north. Then go 1 screen to left and 1 to north. You have to kill all the enemies in this room to open the shutter. Simply use your Shadow Blade or missiles to reach the unreachable enemies and go to north. Open the locked door and go north again. Go left a screen, be careful in the insane trap room and open the another locked door to go north. Then go left, north and left and kill all the enemies to open the shutter. After that, go left into a tough puzzle room with fireballs flying all over the place. HERE'S a screenshot of how to solve this puzzle (sorry, but the shot will be uploaded later...). Then open the locked door to go south in to another insane room. Try to avoid the "bubble" enemies as they disable your Light Saber using ability and you don't want that to happen in a small room with many shield guys! Try to kill them fast to open the shutter and go left. Open the final locked door and go south to a room where the "mini-boss" is...
* L4 Mini-Boss:
I hope you have a lot of Zens because you will need them to shoot missiles. First the room fills with those jumping things. Kill them easily with missiles. Then comes the tough part: 3 metal worms appear and they move FAST! If you don't have a big life meter it should be wise to jeep distance from them and try to hit them with missiles. Just shoot insanely and they'll be dead soon. Take the Steel Plater. Exit the room and return to the beginning of the level.
Now that you have the Steel Plate, you could just walk straight to the boss room because now you can walk over those small gaps on the girder floor. But let's get the 2 remaining LEPs first from this level, shall we? First go to the girder floor from the entrance screen. When you're up there, go left and cross the gap on the girder. Keep going left and soon you should reach the 3rd LEP of ? Dome. Return to the entrance of the level and from there go right, north, right, south and down the stairs to B1. Then go right a screen and 2 screens to north. Go left through the door and then north. Go up the ladder to the smoke floor. When there, go up another ladder to the girder floor. Start going north and soon you should see your 4th LEP.
Let's go to the boss now. From the entrance go a screen to right and 2 screens to north. Go up the ladder to the girder floor. Find your way to the northeast corner of the smoke floor and go down the stairs. Then go 1 screen north and keep going left until you see a ladder... but if you forgot to open the 2 shutters then you must go back and open them. Anyway, when you're back on the smoke floor, go 2 screens to right and blow up the shutter since the computer doesn't work.
Go north and drop down into the hole. You see a triforce. Walk toward it and a familiar looking boss appears...
= L4 BOSS: Guardian robot =
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"Not again" you might think. Well, unfortunately these guys likes to hang around in domes so just deal with it. There's no big strategies here. Keep moving because the boss shoots fireballs at you and watch out for those annoying traps. When the eye of the boss flashes, shoot it! When it summons help, concentrate on the baddies instead of worrying about the fireballs or traps because they don't cause too much damage. When the boss is dead, you'll get your prize.
Edited by Mr.Descer, 24 April 2005 - 10:14 AM.