Kingdom Hearts/Traverse Town (2nd Visit)

Go to the alleyway in the second district. Kill all of the enemies and use Trinity, go to the cavern, and talk to Leon, twice.

Next, go to the accessory shop and talk to Cid. Then go to the third district. Go to the door with fire symbol and use fire, which will allow you to enter. Go to the house and watch a cut-scene, then talk to Merlin. After another cutscene you can summon Simba.

Enter Book Of Pooh at will. Go to the second district. There go to the side of the gizmo shop where there is a ladder. Defeat enemies, use Trinity and pull the rope until a keyhole appears. Defeat the boss and seal the keyhole.