a quest requires a password. In the North American Nintendo Entertainment System (NES) English version, the quest is saved onto the game cartridge's battery-backup (called an "Adventure Log" in the "Imperial Scrolls of Honor"), with options to delete or duplicate a saved quest. In a new quest, the player may give the hero any name which the game analyzes to determine the initial ability scores and their statistical growth over the course of the game. Dragon Warrior presents players with a clear objective from the start and uses a series of smaller scenarios to increase the hero's strength in order to achieve the objective. The game begins in King Lorik's chamber in Tantegel Castle, where the hero receives information about the Dragonlord, whom he must defeat, and the stolen Balls of Light, which he must retrieve. After receiving some items and gold, the hero sets out on his quest. Much of Dragon Warrior is spent talking to townspeople and gathering information from them that leads to additional places, events, and secrets. Towns contain shops that sell improved weapons and armor; general stores where the player may buy other goods; inns that allow the hero to recover his health and magic, and shops that offer keys for purchase. The player may sell items at half price to shops that provide weapons, armor, or general goods. The hero's status window is shown whenever he stops moving, displaying his current experience level (LV) and the number of hit points (HP), magic points (MP), gold (G), and experience points (E). To safely progress to the next areas in the game, the player needs to accumulate experience points and gold by defeating enemies outside of towns – in the overworld and in dungeons. Apart from the Dragonlord's castle, there are no physical restrictions on where players can roam. Instead, monsters increase in difficulty as players venture further from Tantegel castle. As the hero's level increases, the player can explore further afield with less risk. Enemies appear in random encounters and the hero fights one opponent at a time. The encounter rate is lowest on fields and increases in forests and hills. Battles are turn-based and fought from a first-person perspective while the hero remains off-screen. In combat, players must defeat the enemy by reducing its HP to zero. During combat, players have four commands: "fight", "run", "spell", and "item". The "fight" command causes the hero