After defeating Bahamut, leave the research center by boarding the Ragnarok and then enter the Conference Room. Return to the research center after exiting the Ragnarok and you’ll find that the core has been destroyed and there’s a passage down to the lower levels. The new area is a strange, rotating structure filled with steam powered airlocks.
Your goal in this section is to work your way down to the bottom floor by using the remaining 20 units of reserve steam power to open the vrious airlocks. When you reach the bottom, you must have 10 units left in order to start the final control panel.
There are a couple of ways to go about this:
Solution #1 (Without Zell) Solution #2 (With Zell)
Floor 1:
4 units spent automatically to open door to Floor 2
Total RSP: 16 Floor 1:
4 units spent automatically to open door to Floor 2
Total RSP: 16
Floor 2:
Spend 2 units to open the door to Floor 3: Sector 2
Total RSP: 14 Floor 2:
Spend 1 units to open the door to Floor 3: Sector 3
Total RSP: 15
Floor 3:
Use the monitor on the left under the stairs and spend 4 units to open the Steam Room. Inside the Steam Room you can use the Esuna Draw Point and use the station there to recharge 7 Units for a total of 17 Units. Use teh second station in the main room to spend 1 Unit, and opn the door to Floor 4: Sector 6.
Total RSP: 16 Floor 3:
Use 1 Unit to open the door to Floor 4: Sector 6
Total RSP: 14
Floor 4:
Use 1 Unit to open the door to Floor 5: Sector 9
Total RSP: 15 Floor 4:
Use 1 Unit to open the door to Floor 5: Sector 9
Total RSP: 13
Floor 5:
Use 1 Unit to open the door to Floor 6.
Total RSP: 14 Floor 5:
Use 1 unit to open the door to Floor 6.
Total RSP: 12
Floor 6:
Spend 4 units to open the door into the excavation site.
Total RSP: 10 Floor 6:
Inspect the machinery to the right of the levers, and Zell will suggest that he can handle the machine. Allow him to do so, and the door will open without spending any steam units.
Total RSP: 12
With either solution, you’ll be able to reach the bottom floor with the required 10 RSP. Make your way through the excavation site, and at the bottom you’ll find another control panel. Save your game at the hidden Save Point and use teh 10 RSP to activate teh final control panel. Inside you’ll face a very tough Boss: Ultima Weapon.
GOOD LUCK AND ITS NOT IMPOSSIBLE