Final Fantasy II features gameplay similar to that of its predecessor, Final Fantasy. The player can freely roam an overworld containing several towns and dungeons. A menu-based system allows the player to outfit each character with equipment and up to two—often disposable—items for battle. Magic spells are assigned to the character from the item menu, and certain spells, such as "Cure", can be used outside of battle. The player can also save their progress on the overworld. Weapons, armor, items, and magic spells can be purchased at shops, and townspeople provide useful information for the player's progression through the game. One new feature is the "Word Memory" system: when in conversation with non-player characters (NPCs), the player can "ask" about and "memorize" special keywords or phrases, which can later be repeated to other NPCs to gain more information or unlock new actions. Similarly, there exist a handful of special items that can be shown to NPCs during conversation or used on certain objects, which have the same effect. Characters and monsters are no longer separated into separate windows in the battle screen as they were in the first Final Fantasy, and players can see their current and total hit points below the battle. Players can also fight with less than four characters in their party, which was not possible in the first game. Final Fantasy II introduced the chocobo, the signature Final Fantasy mascot, which lets characters ride to a location at great speed without being attacked by enemies. The recurring character Cid was also introduced in II; a character of the same name has appeared in every main-series game since.