talk to FireMan's operator, Mr. Match, and learn of the vaccine being distributed to amend the Zero Virus is actually doing just the opposite, having caused FireMan to go berserk. Confirming this with Lan's father, Dr. Yuichiro Hikari, the two set out to search for the cure of the problem, finding many situations of pragmatic Navis infected and causing mayhem. Stopping all of them and returning them to their respective operators, the two eventually discover more clues leading to the remnants of the WWW. It is revealed that a powerful Navi called StarMan.EXE has been distributing the virus. After defeating StarMan, MegaMan and Lan engage in a climactic battle against the powerful super virus Zero himself. However, at the conclusion of the battle, just as the finishing blow is about to be delivered to Zero, the heroes discover he is not evil. Lan's father then transforms him into a full-fledged Navi. However, their happiness is short-lived as a former member of the WWW simply named "Professor" reveals this was all part of his scheme to revive the dreaded Life Virus. Analyzing clues, MegaMan and Lan engage and defeat the second Life Virus and use Zero's observation powers to eventually bring the Professor to justice. There is dialogue at the end of the game between ShadowMan.EXE and his operator Mr. Dark, leading the plot into the next chronological installment, Mega Man Battle Network 2. Gameplay Mega Man Network Transmission incorporates aspects of action and platforming games similar to other Mega Man series, while retaining the strategy and role-playing elements of the Battle Network series. The player takes control of the protagonist Lan within the game's real world and his NetNavi MegaMan.EXE within its internet. Unlike previous games in this series, Lan is restricted from moving location to location. Instead, the player uses a map screen with points of interest to travel to different levels. Levels are opened up as the player progresses through the game, with a slight emphasis on linear progression, although MegaMan can move off-path at times. Levels typically end in a boss battle with another NetNavi. Combat takes place in real-time, with MegaMan given the ability to jump, slide, fire his default arm cannon, and dodge enemy attacks on a two-dimensional plane. Special abilities called "Battle Chips" are provided through a "Custom Bar" that slowly fills at the top of the screen. When the bar is full, the