Dragon Quest IX, is massive. In fact, producer Ryutaro Ichimura notes that "the amount of freedom we give players is huge." The consequence? "The data that needs to be saved is enormous." Instead of providing multiple save slots, as found in most DS games, Dragon Quest IX is too large to fit more than one save file in the DS cartridge's limited memory.
While those who prefer creating multiple save points (before a dungeon, for example) will be disappointed, we're reminded of yet another huge DS game: Pokemon. And like Nintendo's monster collecting RPG, Dragon Quest IX will feature a backup system just in case your DS battery dies. "The scariest for save data is when the battery dies," notes DQ creator Yuji Horii. With this system in place, you'll be safe knowing a failed save won't result in hours of gameplay lost.