Okay, so I'm supposed to be able to get the power generator (which teaches Quistis 'Ray Bomb') by tampering with the levers in the Lunatic Pandora, but I can never manage to open all three of the trapdoors. The one in the middle opens first, but when I go back around to the left one, Kiros says it's not possible to open. So my question is: how do i open all three trapdoors?

hmm well i cant quite remember but i think there can is an easier way just keep mugging robots and i think you will get power generator thats what i did

Yes, I think you can open all three of them. Open the middle one at first. Now go back to the beginning, go down the other way in the back. You reach the trap door on the left. You can't unlock it, because you would be stuck. One of the guys says that too. After that, Laguna says the trap door would be broken anyway.

After he said that, you walk around the other direction again. Now, you can open the trap door on the right side.

Go up north and activate the explosion. As far as I remeber, you have to do the switch for the small rock at first. Do the swich for the big rock after that. The power of the explosion should open all doors. ;)

thanx aerith!