The Navi Customizer (ナビカスタマイザー, Nabikasutamaizā^?), NaviCust for short, is a NetNavi customization program built by Yuichiro Hikari. It was made for the PET models Plug-in PET, Advanced PET, Progress PET, and Link PET.

In Mega Man Battle Network 3, if Lan uses a Navi Customizer Program that the current Style did not support and rebooted MegaMan.EXE, he'd get an error, MegaMan would not be able to boot up, unless remedied with an Extra Code. However, in the fourth, fifth, and sixth games, the errors disappeared due to MegaMan overloading to destroy Alpha. In doing so, he nearly killed himself, but when Lan gives Yuichiro Tadashi Hikari's letter, MegaMan is recovered from Alpha's body. However, his letter removed the Style Change. So, Double Soul was made as a suitable replacement.

Contents 1 Rules 2 Codes 2.1 Extra Codes 2.2 Compression Codes 3 List of Navi Customizer Programs 3.1 Common Solid Programs 3.2 Common Textured Programs 3.3 Exclusive Programs 4 Gallery

RulesEdit

The Navi Customizer consists of a set area, and a Command Line running through the center of the area. Through all of its incarnations, it has four basic rules:

• Solid programs must be placed with at least one block on the Command Line. If this rule is broken, not only will bugs occur, but the program will not take effect. Even with Bugstop enabled, this rule must still be applied for the program to work.
• Textured programs must be placed off the Command Line.
• No two programs of the same color can touch each other.
• No more than four different colors may be placed in the area.

Breaking any of these rules will result in bugs occurring in MegaMan, and each bug has different effects depending on the part(s) that violate the rules. All bugs can be omitted by the NaviCust program BugStop, which allows most rules to be broken; solid programs still need to have at least one block on the command line to take effect.

Each NaviCust piece is a combination of blocks, and is either completely solid or completely textured. If the player possesses the Spin item of a piece's color, they will be able to rotate all pieces of the same color with the L or R buttons - a valuable asset when it comes to maximizing the use of the NaviCust's limited space.

The NaviCust is always at a tiny 4x4 area the moment the player receives it. To expand it, the player must find "ExpMemory" items, which will boost the space to a 5x4, and eventually a 5x5 area, allowing for maximal programs to be installed.

The NaviCust is always introduced with the Undershirt, Attack+1, and Speed+1 programs.

In Mega Man Battle Network 4 onwards, the color compatibilities have been removed. Instead, MegaMan can now equip parts of any color, as long as he does not equip more than four different colors at the same time. Bugs will ensue if this rule is broken.

In Mega Man Battle Network 6, parts can now be placed off the Navi Customizer's main area, on the condition that at least one block of the part is left in the main area. Also, regardless of whether or not a block is on the main memory map, no blocks can be placed on the outside corners of the map (i.e. off-map areas only extend off the main map and do not allow corners outside of the map). This has resulted in the total space available being almost doubled. The Command Line is also capable of reading "hidden" parts, as long as they're aligned with the main Command Line. However, placing parts off the main area will, once again, result in bugs.

CodesEdit

Extra CodesEdit

In Mega Man Battle Network 3, different Styles are compatible with different NaviCust program colors. In addition to MegaMan's innate compatibility with yellow, pink, and white programs, a Style is compatible with an additional program color:

• Guts/Shadow: Red
• Shield/Custom: Blue
• Team/Ground: Green
• Bug: Grey

If any of the programs to be installed are of an incompatible color, the NaviCust will bring up an error, and MegaMan will not be able to boot up, unless the player can remedy this using a ModCode (A.K.A. Extra Code).

To use the Extra Code, press Select in the NaviCust when the system reports an error or says "OK!". The screen will bring up a series of alphabets and numbers. By inputting the correct sequence, Lan can remedy the error and allow MegaMan to boot up. If no incompatibility error is present, the Extra Code can be inputted to give MegaMan extra abilities. Be warned that some abilities have side effects.

Compression CodesEdit

Programs can be reduced by a few squares by inputting a Compression Code. Doing so will shrink it, allowing for more programs to be inserted. Each program has its own unique compression code in each game. In Mega Man Battle Network 3, to input the compression code, highlight the program that's going to be compressed, hold select, and input the commands. In Mega Man Battle Network 5 and 6, highlight the program, hold right, and input the commands. Mega Man Battle Network 4 does not utilize Compression Codes as the Programs come already precompressed.

List of Navi Customizer ProgramsEdit

Navi Customizer Programs are the program blocks for the Navi Customizer that allow a NetOp to upgrade and personalize their NetNavi with new abilities.

Common Solid ProgramsEdit

These programs must be placed on the Command Line to have their effects applied. Failure to do so would not only prevent them from working, but will also create bugs in programming. All the following programs can be found in all games from Mega Man Battle Network 3 to 6.

Name	Effects	Known Glitches
Under Shirt	If MegaMan would be deleted while he has more than 1 HP, his HP falls to 1 instead.
Super Armor	MegaMan cannot flinch. This prevents him from being interrupted while attacking, and prevents loss of Busting rank due to getting hit.	Hinders the player's ability to move MegaMan.
Air Shoes	MegaMan can stand on holes.	Panels which MegaMan steps off become cracked, destroyed, or Poison panels.
Float Shoes	MegaMan does not suffer from ill effects of panels. This means he does not slide on Ice panels, does not get burnt by Lava panels, etc. He still takes double damage from Fire and Elec attacks on Grass and Ice panels respectively though, and in Battle Network 3 he still takes damage from standing on Poison panels, and creates holes when he moves over cracked panels.	Panels which MegaMan steps off become cracked, destroyed, or Poison panels.
Anti-damage	By pushing B + ←, MegaMan enters a temporary state. Any damage done in this state is negated, and a throwing star will be thrown at the nearest enemy, damaging it.
Custom 1	Increases initial Custom capacity by 1.	HP depletion while accessing the Custom Window.
Custom 2	Increases initial Custom capacity by 2.	HP depletion while accessing the Custom Window.
Shield	By pushing B + ←, MegaMan pulls up a shield that can block non-breaking attacks.	Hinders the player's ability to move MegaMan.
Reflect	By pushing B + ←, MegaMan pulls up a shield that can block non-breaking attacks and damage all enemies in the same row as him	Hinders the player's ability to move MegaMan.
Mega Folder 1	Increases Mega Chip capacity in the folder by 1.	HP depletion while accessing the Custom Window.
Mega Folder 2	Increases Mega Chip capacity in the folder by 2.	HP depletion while accessing the Custom Window.
Bug Stop	Prevents glitches from occurring, allowing the player to break the rules of the Navi Customizer with no drawback.	Cannot be glitched.
Sneak Run	This gives a permanent effect of the Subchip of the same name, allowing MegaMan to go about with reduced chance of randomly encountering weak viruses.	Raises random encounter rate.
Oil Body	Raises encounter rate of Fire-attributed enemies.	Reduces encounter rate of Fire-attributed enemies.
Water Body	Raises encounter rate of Water-attributed enemies.	Reduces encounter rate of Water-attributed enemies.
Battery	Raises encounter rate of Elec-attributed enemies.	Reduces encounter rate of Elec-attributed enemies.
Jungle	Raises encounter rate of Wood-attributed enemies.	Reduces encounter rate of Wood-attributed enemies.
Collect	Forces the rewards from battle to become a battle chip that can be obtained from the fought enemies. No data is acquired if they do not drop battle chips.	Forces rewards to become Zenny instead.
Humor	Pressing L in the real world will have MegaMan tell a (bad) joke.	Causes MegaMan's Emotion Window to flicker between available states.
Rush	During multiplayer matches, if the opponent uses Invis or Mole chips, the chip is negated and they are paralyzed.
Beat	During multiplayer matches, once per turn, if the opponent uses a Mega or Giga class chip, the chip is stolen and you use it instead.
Tango	During multiplayer matches, when MegaMan's HP falls to 25% of max HP or lower, it heals him and may provide a barrier.
Giga Folder 1	Allows the player to add 1 more Giga Chip into their folder.	Panels which MegaMan steps off are turned into Poison panels. Cannot be fixed without BugStop.

Common Textured ProgramsEdit

These programs have four shaded squares on each tile. They must be placed off the Command Line. Failure to do so will cause bugs. The following programs can be found in Battle Network 3 to 6.

Name	Effects	Known Glitches
Attack +1	Buster damage +1	Buster may fail to fire. (Guard and Misfire)
Speed +1	Buster fire rate +1	Buster may fail to fire. (Guard and Misfire)
Charge +1	Buster charge speed +1	Buster may fail to fire. (Guard and Misfire)
HP +50	Max HP +50	HP bug during battle.
HP +100	Max HP +100	HP bug during battle.
HP +200	Max HP +200	HP bug during battle.
HP +300	Max HP +300	HP bug during battle.
HP +400	Max HP +400	HP bug during battle.
HP +500	Max HP +500	HP bug during battle.

Exclusive ProgramsEdit

The following programs appear only in certain games.

Name	Game(s)	Type	Effects
Break Charge	3	Solid	Charged Buster shots can break guards.
Break Buster	3	Solid	Normal and charged Buster shots can break guards.
Shadow Shoes	3	Solid	MegaMan can move over cracked panels without breaking them. This is later integrated into the Float Shoes program.
Set Metal	3	Solid	The battle starts with all panels as Metal panels.
Set Sand	3	Solid	The battle starts with all panels as Sand panels.
Set Green	3	Solid	The battle starts with all panels as Grass panels.
Set Ice	3	Solid	The battle starts with all panels as Ice panels.
Set Magma	3	Solid	The battle starts with all panels as Lava panels.
Set Holy	3	Solid	The battle starts with all panels on MegaMan's side as Holy panels.
Block	3	Solid	Pushing B + ← will have MegaMan temporarily enter a state where any damage suffered is halved.
Fast Gauge	3	Solid	The Custom Gauge fills up at double speed.
Press	3	Solid	This compresses MegaMan, allowing him to walk on thin beams located all across the net.
Energy Change	3	Solid	This allows MegaMan to use Aqua chips to put out FlameMan.EXE's fires or use Fire chips to burn down PlantMan.EXE's vines.
Black Mind	3	Solid	This gives MegaMan an evil aura, allowing him to communicate with certain Heel Navis.
Alpha	3	Solid	This allows the player to spot tiles on the floor where Alpha is hiding, and avoid them.
Buster MAX	3	Solid	Increases all Buster stats to 5. Charge shot level is unchanged. All loaded chips in battle will be automatically used at the start of the turn.
Dark License	3, 4	Solid	In Battle Network 3, MegaMan can use certain Giga chips without needing the "Hole" chip. In Battle Network 4, it takes up the entire NaviCust, but allows MegaMan to use Dark chips with no drawbacks. Infos for the NCB in 4
Hub Batch	3, 4	Solid	Gives a number of effects, including Break Buster, Super Armor, Air Shoes, Float Shoes, Custom 1, Mega Folder 1, Shield, and Under Shirt. This will, however, halve MegaMan's max HP.
First Barrier	4, 5, 6	Solid	MegaMan starts the battle with a 10 HP Barrier.
Buster Pack	4, 5, 6	Solid	+3 to all Buster stats.
Body Pack	4, 5, 6	Solid	Gives Air Shoes, Float Shoes, Super Armor and Under Shirt.
Soul Cleanser	4, 5	Solid	Increases the rate at which MegaMan recovers from "Dark MegaMan" state by battling without using Dark Chips.
Millions	5, 6	Solid	All Green Mystery data becomes Zenny.
Auto Recover	5, 6	Solid	MegaMan regenerates some HP at the end of each battle.
Auto Run	5	Solid	MegaMan can run without needing to push the B button. This actually reduces the encounter rate slightly.
Chivalry	5	Solid	Pushing L in the real world will allow MegaMan to give some masculine comments.
Mega Virus	5	Solid	Allows MegaMan to encounter Tier 2 Viruses without needing to open the portal to Nebula Area 1.
Giga Virus	5	Solid	Allows MegaMan to encounter Tier 3 Viruses without needing to open the portal to Nebula Area 4.
Support	5 (DS)	Solid	Allows MegaMan to use his Support ability while not in battle via the Party Battle System.
Change +1	5 (DS)	Solid	Allows the player to perform one additional Navi Change with the Party Battle System.
Change +2	5 (DS)	Solid	Allows the player to perform two additional Navi Changes with the Party Battle System.
Chip Shuffle	6	Solid	Grants access to the "Search Shuffle" ability once per turn in the Custom Screen.
Number Open	6	Solid	MegaMan starts with 10 chips in the Custom Screen.
Poem	6	Solid	Pushing L in the real world will allow MegaMan to recite a poem.
Slip Runner	6	Solid	MegaMan can run without needing to push the B button. Pushing B and a direction will cause him to continuously slide along the map until he hits a wall. No viruses will be encountered until he stops sliding, and the encounter rate is reduced while running.
Folder Pack 1	6	Solid	Grants Custom 1 and Mega Folder 1.
Folder Pack 2	6	Solid	Grants Custom 2 and Mega Folder 2.
Weapon LV +1	3	Textured	Upgrades MegaMan's Style Change charge shot level by 1. Does not work with Normal Style. Caps at 3.
Regular +5	3	Textured	Increases memory for Regular Chip by 5 MB.
Attack MAX	4, 5, 6	Textured	Increases Buster attack to 5.
Speed MAX	4, 5, 6	Textured	Increases Buster firing speed to 5.
Charge MAX	4, 5, 6	Textured	Increases Buster charge speed to 5.
Soul Time +1	5	Textured	Increases duration of Soul Unisons. Does not extend duration of Chaos Unisons.

GalleryEdit

Mega Man Battle Network series
Main characters
Lan Hikari (MegaMan.EXE) • Mayl Sakurai (Roll.EXE) • Eugene Chaud (ProtoMan.EXE) • Dex Oyama (GutsMan.EXE) Yai Ayanokoji (Glyde.EXE) • Baryl (Colonel.EXE) • Higsby (NumberMan.EXE) Dr. Hikari • Haruka Hikari • Ms. Mari • Mr. Match • Lord Wily • Bass.EXE
Games
Mega Man Battle Network • 2 • 3 • 4 • 5 • 6 Rockman.EXE Operate Shooting Star • Mega Man Network Transmission • Mega Man Battle Chip Challenge Rockman.EXE 4.5 Real Operation • Rockman.EXE Phantom of Network • Rockman.EXE Legend of Network Rockman.EXE WS • Rockman.EXE Battle Chip Stadium • Rockman.EXE: The Medal Operation
Anime and Manga
MegaMan NT Warrior • Axess • Stream • Beast • Beast+ • Movie • MegaMan NT Warrior (manga) Battle Story Rockman.EXE • Gekitou! EXE Kyoudai Rockmeen! • Shuugou Zen'in Gagtte!! Rockman!
Related Pages
Bastion • Battle Chip • Darkloid • Gospel • Forces of Darkness • Locations • Navi Customizer • Navi Cust Programs Nebula • NetNavi • PET • Program Advance • Emotion Window • Upgrades • Virus • World Three

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