Provided the bridge under you hasn't collapsed at this point, make your way back to the platform to the north, and cross to the solid ground to pick up an X-Potion from the chest.

Wait for the bridges to change again before going south, then west to claim the Heiji's Jitte relic from the lone treasure box. When you're ready to move, navigate to the rock platform near the middle of the area. With that being said, take a moment to stand and watch how and when the bridges will change. If a bridge changes while you're standing on it, you will fall and land back at the room’s entrance. The aforementioned bridges will shift positions once every thirty seconds or so. Go down the stairs on the left side of the screen and pick up the Kazekiri before using the stairs on the right to enter a chamber that is full of shifting bridges and lava. From the entrance, head east from the short stairs to grab an Assassin's Dagger before continuing to the next room. The cave leading to the Sealed Gate is comprised of three levels.

Download final fantasy 6 treasure guide