The gameplay of "Final Fantasy VII" is mostly comparable to earlier "Final Fantasy" games and Japanese role-playing games. The game features three modes of play: the world map, the field, and the battle screen. At its grandest scale, players explore the entire world of "Final Fantasy VII" on a 3D world map. The world map is littered with representations of areas for the player to enter, including towns, environments, and ruins. Natural barriers—such as mountains, deserts, and bodies of water—block access by foot to some areas; as the game progresses, the player receives vehicles that help traverse these obstacles. Chocobos can be found in certain spots on the map, and if caught, can be ridden to areas inaccessible by foot or vehicle. In field mode, the player navigates fully scaled versions of the areas represented on the world map. For the first time in the series, this mode is represented in three-dimensional space. The player can explore the environment, talk with characters, advance the story, and initiate event games in this mode. Event games are short minigames that use special control functions and are often tied into the story. While in field mode, the player may also find shops and inns. Shops provide an opportunity to buy and sell items that can aid Cloud and his party, such as weapons, armor, and accessories. If the characters rest at an inn, their hit points and mana points will be restored, along with any abnormalities contracted during battles.