Mega Man Battle Network 3 walkthrough

Introduction
"The year is 200X. The world's machines are joined in a worldwide network. But there is a dark side to this convenience as well: Computer viruses, and an increase in NetCrime. The Virus Lab at Scilab... conducts ways of dealing with these viruses. One day... the students of ACDC School, in ACDC Town in DenCity, took a field trip to the Scilab's Virus Lab."

Main Characters:
Lan Hikari: A fifth-grader at ACDC School. Though his grades aren't too great, his virus busting skills are top-notch, defeating the WWW and the criminal netmafia Gospel. His Navi MegaMan.EXE was carved out of the memory of Lan's twin brother Hub, who died at an early age.

Mayl Sakurai: Lan's friend and classmate. Thoughout the series, she and her Navi, Roll.EXE, develop feelings for Lan and his Navi.

Dex Oyama: Another friend and a classmate of Lan. Arrogant and hardheaded, he is also academically troubled, but shows a loving side with his his little brother, Chisao. He and his Navi often have feelings for Mayl and her Navi, but is often turned down. His Navi GutsMan.EXE is shown to be very strong.

Yai Ayanokoji: Also Lan's classmate and friend, she is the daughter to very rich parents. She is also very smart, considering that she's too young for fifth grade. Though not seen in battle, her Navi Glyde.EXE is known to defend himself with rare and powerful chips.

Eugene Chaud: An Official NetBattler, and a rival to Lan. Though he has a cold attitude to Lan, he sometimes helps him when the going gets tough. His Navi ProtoMan.EXE is also extremely skilled.

Busting Viruses
A helpful tip to know is that some viruses have an elemental weakness. When attacked by a chip of a certain element, or it's on a certain type of panel, the damage dealt becomes double, and maybe quadrupled if both factors are involved. The way that elements work against each other goes like this: (Aqua>Fire>Wood>Elec>repeat)

There are also certain types of panels that may affect you, the viruses, and the entire battlefield:

Cracked Panel: If you stand on a cracked panel and step off of it, the panel becomes broken and unable to stand on unless you have AirShoes.

Ice Panel: If the panel is somewhere in the middle row or column, you will slip when you stand on it and be pushed to the other side. Aqua Styles and Aqua viruses prevent slipping on these panels. Double damage occurs using Elec chips.

Lava Panel: MegaMan and non-Fire elemental viruses will get damaged walking over these panels, which turn to normal panels after being stepped on. Heat Styles and Fire viruses can walk over these panels without getting damaged. Double damage occurs with Aqua chips, which also eliminate Lava Panels.

Grass Panel: A normal panel to walk on, these panels recover HP one by one to Wood Styles and Wood viruses as long as they stand on it. Double damage occurs with Fire chips, which also eliminate Grass Panels.

Sand Panel: These panels slow down MegaMan's movement as he walks over them. Barriers and Auras prevent MegaMan from slowing down. Tornado chips and PowerAttacks do double damage.

Metal Panel: These panels cannot be cracked.

Poison Panel: MegaMan's HP and the virus' HP will drain one by one as long as they stand on them. Causes deletion when health drops to 0.

Holy Panel: Reduces the damage of enemy attacks by half as long as Megaman stands on them, which reduces the damage of your attacks when used by viruses.

To make things easier, these letters represent the elements of chips and viruses: Now go out there and delete some viruses!!!
 * (X)-None
 * (A)-Aqua
 * (F)-Fire
 * (W)-Wood
 * (E)-Elec

Day 1
Talk to all the students and Miss Mari will tell everyone to jack in so press R and follow the tutorial if you don't already know. After the field trip talk to your friends and leave school and go to the playground. A man named Sunayama offers Lan and his friends the chance to battle live on television, and N1 preliminaries are being held in ACDC Square. Enter Lan's house, talk to your mom, enter your room, read Dex's e-mail and jack into your computer.

ACDC Area:
Viruses Encountered:

(New!) (X)Mettaur:

HP: 40

A helmet-wearing virus. Moves up and down, firing shockwaves down your row. In groups, one attacks, while the other remains stationary. Drops (X)Guard and (X)ShockWave chips.

(New!) (X)Canodumb:

HP: 60

A stationary cannon virus. When Megaman lines up with the virus, a cursor goes down the row, then shoots if the cursor catches Megaman. Drops (X)Cannon chips.

(New!) (E)Eleball:

HP: 80

A small, floating virus. Viruses like these that float can go over cracked panels without breaking them, and are not affected by special panels (except Poison and Holy). Moves diagonally, damaging Megaman if in their way. If Megaman faces them, they will stop and fire electric sparks on the surrounding panels. Drops (E)Plasma1 chips.

(New!) (X)Boomer:

HP: 70

Another floating virus. Moving up and down, the boomerang it holds blocks against your shots and chips. When the boomerang circles the entire field, the Boomer becomes vulnerable to attack. Drops (W)Boomer1 chips.

(New!) (E)Bunny:

HP: 40

A virus resembling well...a bunny! Jumps from panel to panel, firing electric rings down their rows. Causes paralysis, leaving Megaman open to other attacks. Drops (E)ZapRing1 chips. Follow the arrows to ACDC 3, and look for a warp point on the lower level to go to ACDC Square. Talk to the Navi east of the warp point to enter round 1 of the N1 preliminaries. Round 1 is simple: The Navi asks you three true "O" or false "X" questions, and you have to give him the right answers by collecting X and O data scattered throughout ACDC and bringing it back to the Navi. Answer "YES!" to "Do you want to be the No. 1 NetBattler" to start the round. Here's the first question: Red means "Stop"! Look for the "O" data in ACDC 3, at a dead end past the cyber squirrel. Bring it back to the Navi for your second question: A ton of lead is heavier than a ton of feathers. Look for the "X" data in the plaza in ACDC 2. Bring it back to the Navi for your last question: Adding every number from 1 to 10 gives 54. Look for the "X" data all the way back to the beginning of ACDC 1 via your PC. Bring it back to the Navi to conclude round 1 of the N1 preliminaries. After a nice dinner, use the YaiCode that Glyde gave you back at ACDC Square to access Yai's PC in ACDC 2 and meet up with her. Talk to everyone to start the one-hour chat. After the chat, Dex realizes that he forgot his disk for a school assignment, but when we get to the front gate, we realize that it's locked, and the lock is somewhere on the Net. Go to ACDC 2 and go to the place where you found the "X" data. Press A in front of the key to unlock the school gate. Read Mayl's e-mail, jack out, and go inside the school. Go to your homeroom and check the third animal cage to obtain Dex's disk. When you almost exit the school, there are strange noises coming from the Teacher's Lounge. Go to the Teacher's Lounge and go inside the door. A voice on the other side talks about a strange object called a TetraCode. When you enter the Principal's office, the unknown person's Navi, FlashMan, uses Hypno Flash and hypnotizes Mayl, Dex, and Yai. Before FlashMan catches you, you flee the scene. Check the school to find where everyone's gone. Talk to Mayl in the first hallway and get a Roll chip. Enter the next door to find Yai in the next hallway and talk to her. Then go into your homeroom and talk to Dex. Lan realizes he needs something to block the light, so check the room next to you and check the top left desk for a Parasol. Go back to the Principal's Office and use the Parasol to block the Hypno Flash so you can jack into the Principal's PC.

Principal's PC:
Viruses Encountered:

(X)Mettaur

(X)Canodumb

(E)Bunny

(E)Eleball Inside the Principal's PC, your walk is cut short by three security doors. Talk to the program and he says you need "Keydata" to open the security doors, but the area is too dark to search for them. Using the hint "Cleaners1", go to the same room you found the Parasol in, and turn on the light switch so the Principal's PC is bright enough to search for Keydata. As the lights flicker on and off, so does mystery data in the area, and the three Keydatas are each hidden inside pieces of mystery data. Obtain KeydataA to unlock the first door to KeydataB, obtain KeydataB to unlock the second door to KeydataC, and obtain KeydataC to unlock the door to the next area. The next area is also dark, and you need three passwords to get to FlashMan. Go back to the Teacher's Lounge, and turn the light on over there to light up the next area. There is a password down south; follow the octagonal path north to a dead end. Another password is the large plaza south of the server; watch out for mystery data containing viruses. The last password should not be too hard to find; it's right next to the giant statue. Using Passwords A, B, and C, unlock the security door and fight FlashMan.

Boss: (E)FlashMan.EXE

HP: 300

Attacks: When you defeat FlashMan, his operator, Rei Saiko, refers him to Rule 98, meaning to never get deleted, even if defeated in battle. FlashMan then takes his leave using Shining Browser Crasher, which is supposedly a beacon for a major catastrophe. When you exit the school, a e-mail from Dex says that he wants to NetBattle, which is optional, but good if you want GutsMan chips.
 * Fires lightbulbs across the panels in different patterns.
 * Fires an electric charge three squares wide and another square long in the middle.
 * Creates two lightbulbs in your area that cause paralysis if you don't destroy them. FlashMan immediately uses the electric charge attack, and may use AreaGrab to get closer.

Boss: GutsMan.EXE

HP: 300

Attacks: That's pretty much it for Day 1! Go to bed, save your data, and prepare for Day 2!
 * Performs a ShockWave attack.
 * Cracks an entire row of your panels.
 * Punches one square in front. Pushes MegaMan back one square.