Mega Man Legends differs greatly from the platforming gameplay of past Mega Man games, the main factor being the three-dimensional worlds, and three-dimensional movement therein. Unlike the original Mega Man series which are platform games, Legends is an action-adventure game with elements like lock-on targeting, which was later made popular by games such as The Legend of Zelda: Ocarina of Time. The player controls Mega Man Volnutt across the title, in which he has to complete different missions such as investigating ruins or fighting pirates. The player travels through a large world, with various dungeons that are explored in a certain order, as well as a town with non-player characters to talk to. As such, the plot is revealed through cutscenes. Although the only way to move in the game is on foot, once Roll Caskett repairs a support car, she is able to directly take Mega Man to specific areas. In Legends, large gems called Refractors are used as a power source. Small shards of them can be exchanged for money, and in the game, enemies that are destroyed will often drop these Refractor Shards. When shards are picked up, the equivalent amount of Zenny, the game's basic unit of currency, is added automatically. The health of Mega Man can be increased through the game in the shops, while it can be recovered through packs bought at shops, obtaining red spheres from defeated opponents or by asking the character Data to recover Mega Man's health. Mega Man also has a Life Shield which reduces the damage that he can receive from enemies. The damage caused by enemies can also be reduced by obtaining upgrades to Mega Man's armor or his helmet. Mega Man's interactions with characters from the game can also affect the price of objects. If the player makes Mega Man be rude with characters, prices from objects will be increased and the dialogues with people will also change. The power of Mega Man's main weapon, the Buster Gun, depends on Buster Parts equipped. Buster Parts can be equipped to upgrade four stats of the Buster Gun; Attack (how strong it is), Rapid (how fast it fires), Range (how far the shots go), and Energy (how many shots can be fired before stopping). Buster Parts can be retrieved from stores or from dungeons. Additionally, Roll is able to create Buster Parts from unusable objects found in the ruins. Roll is also able to make weapons for the player, using specific combinations of parts that can be found in dungeons or bought in shops. Many of these weapons supplement the Buster Gun. The only way to refill them in the field is an item that can be bought, but only one can be carried. Only one special weapon can be equipped at a time, and the only way to switch is to talk to Roll, unlike the original series. Special weapons can be upgraded, and have five stats; Attack, Rapid, Range, Energy, and Special. In order to upgrade them, the player must pay a specific amount of Zenny.