Rules: 
There are four rules that must be followed when placing Program Parts in the Navi
Customizer. They are as follows:
1. Program Blocks of the same color cannot touch be adjacent to each other.
2. No more than four different colors of Program Blocks can be on the grid.
3. Not-textured Program Parts (also known as Ability Parts, as they grant you special
abilities) need to have a part of them
on the Program Line.
4. Textured Program Parts (also known as Plus Parts or Upgrade Parts, as they increase
stats) cannot have a part of them on
the Program Line.
 Program Parts: 
-Legend-
BMD - Blue Mystery Data
PMD - Purple (locked) Mystery Data
ND - NetDealer
PD - Program Dealer
BFD - BugFrag Dealer
(P) - Pink
(Y) - Yellow
(W) - White
 Non-textured: 
-AirShoes-
Colors: Blue
Effect: Mega Man can move over broken Panels.
Obtained: Undernet 4 BFD (22 BugFrags)
-AntiMagc-
Colors: Red
Effect: Press Left and B simultaneously when attacked to avoid damage and hurl shuriken at
the enemy field.
Obtained: Undernet 4 BFD (36 BugFrags)
-Battery-
Colors: Yellow
Effect: Attracts Electric-Element Viruses.
Obtained: Antenna 4 BMD
-Beat-
Colors: Blue
Effect: Turns opponent's Mega/Giga Chips against them, once per turn. Available only in
Linked-GBA NetBattles.
Obtained: Number Trader (25435428)
(Note: Most likely named after a robotic bird of the same name from the original Mega Man
series)
-BodyPack-
Colors: Blue
Effect: Adds AirShoes, FlotShoe, SprArmor, and UnderSht effects. Reduces Mega Man's HP by
half.
Obtained: Number Trader (43494372)
-BugStop-
Colors: White
Effect: Removes all Bugs from improper Customizer programming. Does not prevent Dark Chip
bugs.
Obtained: ACDC Area 1 BMD
-Collect-
Colors: White
Effect: Always win a Chip from Virus battles.
Obtained: Park Area 3 BFT (42 BugFrags)
-Custom1-
Colors: Blue
Effect: Adds one more available Chip to the Custom Menu.
Obtained: Undernet 4 BMD, Castillo HP PD (9600Z), Undernet 6 PD (9600Z)
-DashRun-
Colors: Yellow
Effect: Reduces chances of enemy contact. Does not prevent storyline battles.
Obtained: Park Area 3 BFD (8 BugFrags)
-Fish-
Colors: Blue
Effect: Attracts Aqua-Element Viruses.
Obtained: Dome Locker Room sink BMD during Red Sun/Blue Moon Tournaments.
-FlotShoe-
Colors: Green
Effect: Mega Man ignores negative Panel effects, except for Poison.
Obtained: Undernet 6 PD (8400Z)
-FstBarr-
Colors: White
Effect: Gives Mega Man a barrier that nullifies one hit.
Obtained: Castillo HP PD (6800Z)
-GigFldr1-
Colors: Red
Effect: Allows one more Giga Chip in Mega Man's Folder.
Obtained: Black Earth 2 BMD
-HubBatch-
Colors: White
Effect: Adds armor-breaking ability to the Mega Buster, plus AirShoes, Barrier, Custom1,
FlotShoe, MegFldr1, Shield,
SprArmor, and UnderSht effects. Reduces Mega Man's HP by half.
Obtained: Defeat Black Earth 2 Mega Man DS with light Mega Man
-Humor-
Colors: Pink
Effect: When controlling Lan, press L to hear Mega Man tell extremely bad jokes.
Obtained: Town Net 3 Navi during Red Sun/Blue Moon Tournaments
-Jungle-
Colors: Green
Effect: Attract Wood-Element Viruses
Obtained: NetFrica Area BMD
-MegFldr1-
Colors: Green
Effect: Allows one more Mega Chip in Mega Man's Folder.
Obtained: Park Area 3 BMD, Castillo HP PD (8000Z), Undernet 6 PD (8000Z)
-MegFldr2-
Colors: Greens
Effect: Allows two more Mega Chips in Mega Man's Folder.
Obtained: Number Trader (02109544)
-OilBody-
Colors: Red
Effect: Attracts Fire-Element Viruses
Obtained: Undernet 6 PD (6200Z)
-Reflect-
Colors: Blue
Effect: Press Left and B simultaneously to bring up a shield that blocks enemy attacks and
retaliates with a Shockwave.
Obtained: Undernet 6 PD (13000Z)
-Rush-
Colors: Yellow
Effect: Paralyzes opponents who use Invis or Mole Chips. Available only in Linked-GBA
NetBattles.
Obtained: Number Trader (73298100)
(Note: Most likely named after a robotic dog of the same name from the original Mega Man
series)
-Shield-
Colors: Blue
Effect: Press Left and B simultaneously to bring up a shield that blocks enemy attacks.
Obtained: Castillo HP PD (5500Z)
-SoulClnr-
Colors: White
Effect: Speeds up "lightening" Mega Man's Soul is he turns Dark.
Obtained: Defeat Black Earth 2 Mega Man DS
-SprArmor-
Colors: Red
Effect: Mega Man does not flinch when hit.
Obtained: Netopia Area BMD
-Tango-
Colors: Green
Effect: Recovers 300 HP and activates a 100-point Barrier when Mega Man's HP dips to
warning (red) level.
Obtained: Number Trader (10170506)
(Note: Most likely named after a robotic cat of the same name from the original Mega Man
series)
-UnderSht-
Colors: White
Effect: Restores 1 HP if Mega Man's HP dips below zero.
Obtained: With Customizer
 Textured: 
-Attack+1-
Colors: Pink, White, Yellow
Effect: Increases Mega Buster damage by 1.
Obtained: With Customizer (P), Undernet 6 BMD (Y), Meteor 4 BMD (W), Hard Mode ToyRobo 3
BMD (W)
-AtkMAX-
Colors: White
Effect: Raises Mega Buster attack to maximum
Obtained: Undernet 4 BFD (72 BugFrags)
-Charge+1-
Colors: Pink, White, Yellow
Effect: Increases Mega Buster's charging speed by 1.
Obtained: ToyRobo3 BMD (Y), Hard Mode ACDC Area 3 BMD, Hard Mode Park Area 3 BMD (W), Hard
Mode 2 ElecTower 1 BMD (P)
-ChargMAX-
Colors: Pink
Effect: Raises Mega Buster charge speed to maximum.
Obtained: Castillo HP PD (4800Z)
-Speed+1-
Colors: Pink, White, Yellow
Effect: Increases Mega Buster speed by 1.
Obtained: With Customizer (W), Sharo Computer BMD (P), Hard Mode Dome Locker sink BMD (W),
Hard Mode Sharo Area BMD (Y)
-SpeedMAX-
Colors: White
Effect: Raises Mega Buster speed to maximum.
Obtainable: Undernet 2 BMD
-HP+50-
Colors: Pink, Yellow, White
Effect: Adds 50 to Mega Man's maximum HP.
Obtained: ToyRobo 1 BMD (P), Hard Mode Dog House BMD (W), Hard Mode 2 ACDC Area 1 BMD (Y)
-HP+100-
Colors: Pink, Yellow
Effect: Adds 100 to Mega Man's maximum HP.
Obtained: Castillo HP PD (3400Z) (Y), Meteor 3 BMD (P)
-HP+200-
Colors: Pink, White, Yellow
Effect: Adds 200 to Mega Man's maximum HP.
Obtained: Sharo Area BMD (W), Hard Mode Meteor 4 BMD (P), Hard Mode 2 Park Area 2 BMD (Y)
-HP+300-
Colors: Pink, White, Yellow
Effect: Adds 300 to Mega Man's maximum HP.
Obtained: Undernet 6 PD (9600Z) (P), Hard Mode 2 ToyRobo 3 BMD (Y), Hard Mode 2 Undernet 2
BMD (W)
-HP+400-
Colors: Pink, White, Yellow
Effect: Adds 400 to Mega Man's maximum HP.
Obtained: Park Area 3 BFD (16 BugFrags) (P), Hard Mode Town Area 3 PMD (Y), Hard Mode 2
Undernet 1 PMD (W)
-HP+500-
Colors: Pink, White
Effect: Adds 500 to Mega Man's maximum HP.
Obtained: Number Trader (97618739) (P), Number Trader (30873642) (W)
 Spin Programs and Exp Memory: 
Spin Programs allow you to rotate blocks of the corresponding colors in the Customizer.
They are items, and do not require
being placed in the Customizer.
SpinWhit: Buddha Statues BMD
SpinPink: Coliseum NetBattle Machine BMD
SpinGrn: Hard Mode Town Area 1 PMD
SpinYllw: Hard Mode Goddess Statue BMD
SpinRed: Hard Mode Meteor 1 BMD
SpinBlue: Hard Mode 2 Town Area 2 PMD
Exp Memory increases the grid space of the Navi Customizer, allowing you to place more
Program Blocks. There are two, one
increasing the width of the Navi Customizer by 1 space, and one increasing the height of
the Navi Customizer by 1 space.
These are extremely useful, so get them as soon as you can.
Exp Memory: Hero Statue BMD
Exp Memory: Undernet 2 BMD
 Bugs: 
If the rules are not followed, a bug can occur. A bug causes an undesired (or desired,
depending on your intentions) error in
Mega Man's programming, affecting him while in Battle. If when selecting "Run!" at the
Navi Customizer Mega Man has a delayed
response and some graphical errors are displayed over him, you may have caused a bug.
Check the Navi Customizer and fix the
errors made if this happens (only if you want them fixed; some bugs can cause some effects
that may be useful to you). The
bugs that occur are not random; they are determined by which Program Blocks have caused
the error. The more Program
Blocks of a certain kind (will be shown in next portion of info, the list of bugs) that
have caused an error, the more
intense the effect. Most bugs have three levels of error intensity, but some have less.
Also, some Program Blocks cause bugs
no matter where you place them. BugStop is your friend.
Some of the bugs that can be caused are as follows:
-Battle HP Bugs-
Programs that set this bug off: HP+50, HP+100, HP+200, HP+300, HP+400, HP+500
Level 1: Lose 2 HP every second when in battle
Level 2: Lose 4 HP every second when in battle
Level 3: Lose 8 HP every second when in battle
-Battle Result Bugs-
Programs that set this bug off: Collect
Level 1: Only win Zenny from battles
-Buster Bugs-
Programs that set this bug off: Attack+1, AtkMAX, Charge+1, ChrgMAX, Speed+1, SpdMAX
Level 1: 25% chance of Mega Buster jamming
Level 2: 50% chance of Mega Buster jamming
Level 3: 62.5% chance of Mega Buster jamming
-Color Bugs-
5 colors on grid: Level 1 Player & Custom Bugs
6 colors on grid: Level 2 Player & Custom Bugs
-Custom HP Bugs-
Programs that set this bug off: Custom1, MegFldr1, MegFldr2, GigFldr1
Level 1: Lose 2 HP every second when in the Custom Window
Level 2: Lose 4 HP every second when in the Custom Window
Level 3: Lost 8 HP every second when in the Custom Window
-Encounter Bugs-
Programs that set this bug off: Battery, DashRun, Fish, Jungle, OilBody
Level 1: Reverses Program effect
-Player Bugs-
Programs that set this bug off: AntiDmg, Humor, Reflect, Shield, SprArmor, UnderSht
Level 1: Mega Man confused at start of battle
Level 2: Mega Man automatically moves right
Level 3: Mega Man Automatically moves left