People in Ellay mention dark clouds over Mt. Itoi (a.k.a. Holy Loly Mountain in the fan translation), so Ninten and his friends go to check it out.

Go to Mt. Itoi

Withdraw all of your cash, buy a Bread, and if you put any PSI Stones in storage, you might want to go visit Minnie to get all of them. Then go northeast from downtown Ellay and walk along the dirt path to find a bridge. Cross it and go south. Go southeast when you can, then cross the bridge that you find. There is a house south of the bridge where you can talk to the doctor to buy LifeUp Cream or get some sleep. Buy as much LifeUp Cream as you can carry.

When you are ready, go east from the doctor's house, then when you can't go farther east, go north, and when you can't go farther north, go east to find a cave entrance. Go in.

Mt. Itoi Caves

When fighting the Cerebrum enemies in here (a.k.a. Brainger in the fan translation) use PSI Block to prevent it from doing anything. Then you can use PSI Magnet on it to replenish Ana's PP and have her heal everyone up with the PP that she steals.

From the entrance, go east, ignore the first north path and go up the second north path, then at the next fork go west. Open the gift box to get a Katana. Give it to Teddy and have him Use it. It's his best weapon.

From there, go back the way you came, then go north at the fork and go through the door there.

Go south, then go west. Don't go up the first north path. Keep going clockwise and you will find a LifeUp Cream. Keep going until you find a door at the end of the path. Go through it.

If you don't want a Bomb, skip to the next paragraph. If you do want a Bomb, go through the door on the left. Go southeast, then go south at the fork, and go east at the next fork, and go through the door there. Then go to the right and open the gift box to get a Bomb. Then go to the left and go through the door that you came through a moment ago. Go left, then north at the fork, then go northwest at the next fork, and go through the door there.

You should be in a place with two doors next to each other. Go south from there and follow the path. Go north at the split to get an Iron Skillet. Give it to Ana and have her Use it. It's her best weapon. Then go back to the fork in the path and go west, then go through the door there.

Go south until you reach a fork in the path. Go east until you find a door. Go through it. In this room, go to the end of the path to find Hank's Bat. Give it to Ninten and have him Use it. It's his best weapon. Then go back to the previous room.

Go west to the fork in the path, and go north there. Go through the door at the end.

Follow the path and you will find a PSI Stone. Keep going and you will find a door at the end of the path. Go through.

Mt. Itoi Plateau

Go southwest to find a rope on the wall. Climb up it, then go northeast to find another rope. Climb it, then go north and slightly east to find another rope. Climb up that one, then go east and down a ramp, then keep going east until you find a house. Use Bread here. If you don't have any, be sure to save in the house. Go inside and talk to the Healer to get your health and PP refilled. You can talk to the Healer any time you need to heal up.

Go into the other room of the Healer's house. Teddy will stay in the first room. When Ninten and Ana are alone, talk to Ana. You can answer her question however you want. The result is the same. After the cutscene, you can answer her next question however you want.

After that, a robot will attack! You can't beat it, so just let it defeat you. A cutscene will occur afterward.

When you wake up in the Doctor's house, leave the room and you will see Teddy in the bed. Talk to him. Lloyd will rejoin you.

If you used Bread at the Healer's house, use the Bread Crumbs to go back there. If you didn't use Bread but you saved the game in the Healer's house, you can deliberately be defeated in battle to be sent back to the phone in the Healer's house. Otherwise, you will have to go through Mt. Itoi Cavern again.

From the Healer's house, go north up the nearby ramp, then keep going north and you will reach a lake.

Mt. Itoi Lake

Go northeast around the lake, and walk along the edge of the lake until you find a dock with a boat. Check on the boat and Lloyd will fix it. In the boat, go west to find a whirlpool. Move the boat onto the whirlpool.

Unknown Lab

There are no enemies in this area. Go south and step on the lift to be taken down. From there, keep going west (for a long time) until you find a ladder. Climb up the ladder, then Check on the robot. EVE will join you, and a cutscene will follow.

Mt. Itoi Lake, part 2

Don't go back to the Healer's house with EVE, or she will be destroyed. In battle, EVE can kill all enemies for you, so just make everyone Guard.

Go west, then northwest, then northeast. Go up the ramp that you find, then go north to find another ramp. Go up it.

Mt. Itoi Peak

Keep going north until you find a rope among some dry shrubs. Climb up that rope, and go up the next rope that you find.

At the big rock, go northwest to find some ramps. Go up, then go northeast to find more ramps and go up those. Then go west, then north. At this big rock, go east, then when you see a tree stump to the right, go northeast. Keep going east until you find more ramps, and go up them. Then go northeast to find a cave entrance. Go in. Then go west to find a Sea Pendant. Give it to Ana and have her Use it. Go back to the cave door and go in.

From the cave door, go west, then climb up the rope. Be warned that when you go west from here, EVE will be destroyed, so don't go west yet if you want to level up with EVE's help some more.

When you are ready, go west.

R7038XX

A new giant robot will attack. It will only attack EVE, though, so you don't have to do anything in the battle. Just choose AUTO and wait for it to be over.

Mt. Itoi Peak, part 2

Check on EVE's remains to learn the seventh melody. Then go west from there until you can't go farther west, then go south, then west, and climb the rope there. Then go straight north and climb the rope that you find, then go west and climb that rope. Check on the gravestone.

After the brief cutscene, use the Onyx Hook to return to Magicant.

Magicant

Go into Queen Mary's castle. Go west and go through the second door, then go west and go through the first door. Go west and talk to Queen Mary to start a cutscene.

After the scene, you will be back on Mt. Itoi in front of the gravestone. Go north and enter the cave. Make your way north. You will see a cave door on the way. You can go in and talk to some of the people if you want. Then leave that room.

Keep going north and you will eventually find another cave door. Make sure that Ninten and Ana have PSI Stones (if you haven't used them all up) and make sure that everybody has LifeUp Creams. If you are ready for the final battle, go in!

Giegue

At the start of the battle, you can't harm Giegue, so instead, have Ninten use PSI Shield β, or if he doesn't know it, have him use PSI Shield ɑ on Ana. Ana should use Lifeup π on her first turn, and Lloyd can just Guard or use healing items. Then if Ninten didn't know PSI Shield β, he should use Lifeup on Ana, and she should use PSI Shield β. After that, heal up as necessary and wait until Ninten gets the option to ♪Sing. At that point, use Sing and keep yourselves alive. Keep singing until Giegue is defeated. Congratulations!