In the version 1.0 release of the game (which only exists in Japanese), there was a bug that occurred when exiting certain areas of the game that messed with the game's RAM address of which location the player was in. Due to this, when exiting certain dungeons and then flying to the underworld, the game would think you were inside a lunar dungeon and read from the wrong set of enemy AI tables when entering battles. Due to this, enemies will spend the entirety of the battle using Stone on themselves and their teammates until all of them are defeated. The only difference between versions 1.0 and 1.1 is a bugfix for this.