Glitches in Mega Man Battle Network 4

This section is under construction.

The information may not be complete or 100% accurate.

Add more glitches.

This page is a list of glitches that appear in Mega Man Battle Network 4.

Major glitches

WoodMan scenario slowdown

During WoodMan's scenario in the second tournament of the game, the player must navigate Park Area in order to reach WoodMan, who is in Park Area 3, while Wood Towers are extruding from the path. If the player enters a menu or battle in this area, the game will slow to a halt upon returning to the map if the game is played on an original Nintendo DS. It does not occur on other hardware such as original GBA, Nintendo DS Lite, Game Boy Player, and Wii U, as well as the Wii U Virtual Console version of the game. It also does not occur in the Legacy Collection version of the game.

If the game is left running for a while, it will eventually return to full speed again.

This glitch exists in every version of the Game Pak, and is one of the few Nintendo DS compatibility problems officially acknowledged by Nintendo.

There are some ways of circumventing this glitch:

• Playing the game on any system other than the original Nintendo DS.
• Equipping SneakRun before entering Park Area 1 while having high enough base HP to escape all battles in the area:
  • 251 HP or more in the first playthrough;
  • 551 HP or more in the second playthrough;
  • 851 HP or more in all subsequent playthroughs.
• Only on Red Sun version: deleting WoodMan's entry from the Waiting Room Reception in the Network menu before inspecting the matchups for the first round of the Eagle Tournament of that playthrough.

On a technical level, the glitch occurs when one of the Wood Towers in Park Area is on its last frame of animation when the map screen is reloaded. Upon reloading the map, the game erroneously does not check whether the animation frame index needs to be reset, and as a result, attempts to load a non-existent sprite from an invalid memory address. The junk data read differs between GBA/NDS hardware revisions ; on the original Nintendo DS the junk data is interpreted as continuous sprite data, causing the game to hang until it eventually wraps around back to mapped memory, whereas on other hardware revisions, the junk data is interpreted as the end of the sprite, nullifying the effect of the glitch.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	Yes
European v1.0	Yes
Legacy Collection	No

Color Bug Nullification glitch

In the NaviCustomizer, putting in more than 4 different colors of programs is supposed to give you several bugs in battle. However, if you save a NaviCustomizer setup that has more than 4 colors, remove programs until you have 4 or less colors, then cancel saving and exit the NaviCustomizer, you keep your last saved configuration but any color bugs will be removed. This also works the other way around, by adding programs until you have more than 4 different colors, then cancel and exit the NaviCustomizer, you keep your last configuration but also have a color bug.

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Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	No

Encounter Reset Menu glitch

While playing as MegaMan on the Field Screen, whenever the menu is opened and entered (such as into Chipfolder or Save), the encounter rate is reset. As such, it’s possible to completely avoid encounters by opening and closing the menu every couple of steps.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	No
European v1.0	?
Legacy Collection	Yes

Dimming on Mine collision

JP version

NA version

Use a dimming chip the moment an enemy lands on the panel with Mine will damage the enemy multiple times during dimming. The Repair chip can be used to spot the Mine more easily.

In later versions, Mine will only hit the enemy once.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	No
European v1.0	?
Legacy Collection	Yes

AntiRecovery Cut In lock

This section is under construction.

The information may not be complete or 100% accurate.

Add details how Legacy Collection fixes it.

If you have an AntiRecovery chip ???? trap on, then attempt to set up another AntiRecovery chip, if the opponent attempts a cut in with a dimming recovery chip (for example, Roll), the battle will soft-lock. The game will require a reset.

In the English version, the recovery chip will bypass the AntiRecovery trap and use its effect.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	No
European v1.0	?
Legacy Collection	No

Slasher AntiDamage oversight

If you hold A button for Slasher and an AntiDamage ???? trap is active, you will be immune to all non-HP draining attacks until Slasher is triggered by an an enemy entering your area. As many enemies don’t infiltrate your field, you’re essentially invincible for the rest of the battle. Your Double Soul will also not dissipate after 3 turns. This effect ends once you let go of the A button.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	No
European v1.0	?
Legacy Collection	No

DarkChip JunkSoul oversight

Since selected but not used chips still appear in Junk Soul’s Junk-Chip mechanic; If Dark Chips are selected and not used, then MegaMan restores himself from the Worried emotion into Junk Soul, they will appear again through Junk Soul’s recycle. MegaMan can use those Dark Chips without the consequence of going Evil emotion or losing 1 HP permanently.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

FootBomb scenario text glitch

This section is under construction.

The information may not be complete or 100% accurate.

Has Arbitrary Script Execution potential. Fill in details.

This occurs during the NormalNavi FootBomb scenario, right before heading into the Colosseum for the match. Head to DenDome’s battle machine room and press the L button for a glitched textbox.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes (English language)

VDoll JunkMan lock

If VDoll is set on the field and one players uses a JunkMan chip but the other player cuts in with a chip that will hit the VDoll, the game will soft-lock upon the use of JunkMan.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

New Game+ Folder glitches

In the earliest version of MMBN4, when a New Game+ is started, the Folder selection is reset into Folder1. This creates some impossible Folder set-ups. These glitches can be used together.

In later versions, the game will remain the currently equipped Folder when New Game+ is started.

New Game+ Regular Chip glitch

Equip Folder2 and move the Regular Chip to the 1st slot. In Folder1, move the chip you want to be Regular to the 1st slot (this chip can exceed the current MB limit). Once the next Continue is started, Folder1 will be equipped and that 1st chip slot in the Folder will be your Regular Chip. If at any time you edit the Folder and exit successfully, the 1st slot chip will no longer be the Regular Chip.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	?
Legacy Collection	No

New Game+ Exceed Limit oversight

Add MegaFolders or GigaFolders on MegaMan, then fill Folder1 to the exceeded limits. Afterwards, unequip the abilities and equip any other Folder. Once the next Continue is started, Folder1 will be equipped despite MegaMan no longer able to equip it properly. The Folder can still be edited and it will let you exit it normally. If you go into the MegaMan menu at any time, Folder1 will be automatically unequipped.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	?
Legacy Collection	No

Minor glitches

Visual errors

GutsMan colors

GutsMan's darker red on his body is the same color as the lighter red, making them blend together. This error is only for the original GutsMan sprite, as his SP and DS color swaps have separate colors for the darker and lighter shades.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

ProtoMan's sword

When ProtoManSP or ProtoManDS swing their sword, the sword will use the palette of ProtoMan's original color instead of the color swap.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

BassXX's movement

Whenever BassXX moves, his afterimages appear bright yellow instead of purple. This is because the wrong palette is being used specifically for Bass's XX version.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	Yes
European v1.0	Yes
Legacy Collection	Yes

F Font error

In certain menus, the uppercase F font has a stray off-color pixel on top of the F.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	No

Black Earth Color quirk

The sequence of MegaMan exiting Black Earth through the portal doesn't completely undo the darkening effect. MegaMan's palette is stuck as slightly darker colors until another cutscene modifies it again.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

BugFix Positioning quirk

While a Navi is using the BugFix chip, their sprite's shadow is slightly moved up during the animation. The positioning fixes itself after the animation.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	?
European v1.0	?
Legacy Collection	?

SparkMan Wrong Background

This section is under construction.

The information may not be complete or 100% accurate.

Check SparkManα as well

The location of the SparkManβ ghost encounter on the net is in ACDC Area 3, but the background will be using the one for Town Area instead of ACDC Area.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	No
European v1.0	?
Legacy Collection	Yes

BattleChip Pack Order

In the English language version of the game, a few chips are placed in unconventional spots when the Pack is ordered in ABCD order. This is due to all the games having the ABCD sorting index being done for each chip manually (e.g. MMBN3’s Recov10, Recov120, Recover150 order VS MMBN4’s Recov10, Recov30, Recov50 order).

• CrackOut being placed with chips starting with K.
• ShotStar being placed with chips starting with M.
• DrkLine is placed above DblPoint.

In the Legacy Collection, they are now sorted in their correct ABCD order.

Applies to:
North American v1.0	Yes
European v1.0	?
Legacy Collection	No

Pop-Up Overlap collision

Use Pop-Up when an enemy is directly on top of you. You will be continuously hit for a massive amount of damage.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Double Soul Icon visual

If you select a full set of 5 chips in the Custom Screen then perform a Double Soul with your 5th chip, all the un-selected icons will light up again. However, they cannot be selected.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

OilBody/Fish Encounter error

This section is under construction.

The information may not be complete or 100% accurate.

Does this happen in other areas?

After deleting Roll's ghost data in Town Area 3, equipping Fish sometimes causes you to encounter battles with Fire viruses (and no Aqua viruses). Also, OilBody will always choose the same encounter (with two VolGears, VulGears or ValGears).

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

Save Retry Failure glitch

In the initial Japanese release of Rockman EXE 4, if the game fails to save for whatever reason and the player selects 'yes' to retry, the game will crash. This is caused by a wrong jump target script in the save retry menu script. In all subsequent releases, this glitch is fixed and the game will properly retry the save if the player selects 'yes'.

Note: the game may not crash and instead display incorrect text if the player has Patch Cards in their save file.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	No
Legacy Collection	?

Talk to Tornado error

While playing the WindMan scenario in Park Area, if positioned just right, MegaMan can talk to the tornados flying through the area. Each area have their own effects involving a talk-able object that existed in that area in other scenarios, and MegaMan can keep walking while the textbox is open. Also, while the textbox is open, MegaMan will not get any encounters.

• Park Area 1: Opens the Park Area 1 SubChip Dealer Menu. Once exited, all tornadoes in the area will disappear.
• Park Area 2: A Mr. Prog dialogue.
• Park Area 3: Obtain a Video1 KeyItem from VideoMan’s scenario.

In later versions, the tornados cannot be talked to.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	?
Legacy Collection	No

Unregistered WindMan Record

Beating any Ω boss with Patch Cards will not capture the record, only registering that Navi in the Records as —-:—-. However beating WindManΩ applies this differently by not registering him at all, not even as a —-:—- record.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

ShadeManDS Reward error

If MegaMan ends a battle in Evil emotion, the reward from Navis will be their DS Navi chips. If ShadeManSP is defeated in this way, he will drop the ShadeManDS S chip instead of the correct chip name, ShadeManDS X. As the S code chip doesn't exist, it will not appear in the Pack. In later versions, the correct chip code is given.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	?
Legacy Collection	No

Final Scene Slowdown

During the game’s finale where Regal falls down and the game slow down, if the rest of the cutscene is skipped via Select button, the credits will play slowed down. This is fixed in later versions.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	?
Legacy Collection	No

Backwards Bass glitch

If Bass is countered while doing his back DarkArmBlade attack, he will return to position stunned with his cape backwards. This remains until Bass performs DarkArmBlade again.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Disappearing Field Screen HP

During the FootBomb tournament scenario; after you lose a round of FootBomb and you choose to quit before winning the game, MegaMan’s Field Screen HP won’t appear once the cutscene ends.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	No

Disappearing Dark Soul HP

If an Evil MegaMan’s HP becomes 0 due to AntiRecovery and trigger DarkSoul, their HP will disappear. That MegaMan will continue the rest of the battle without their HP visible to the opposing player.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Evil Chip Cut In glitch

Occurs only if MegaMan's karma is from 470 to 479. In a Network Duel, the game will allow you to use a screen-dimming Evil chip in a cut in, when it usually should not. However, it then turns the chip into FireMan (will trigger AntiNavi, command code works) and deals damage based on the chip you used.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

NumberMan Full Synchro glitch

If the NumberMan chip is used while Full Synchro and it rolls an even number, it won't calculate the x2 multiplier into the damage it deals.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

Counter Hit Emotion Value glitch

If you have to have maxed out Emotion Value and you land a Counter Hit with an attack that would have dealt Emotion Value damage into Full Synchro, the next Patch Card attack will be multiplied by 1.5x. If it was a multi-hit that countered, the next hit from it will be multiplied by 1.5x.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	No
European v1.0	?
Legacy Collection	?

Roll Full Heal glitch

This section is under construction.

The information may not be complete or 100% accurate.

Research VS AntiRecv in English GBA.

If the Roll chip is used with a x2 multiplier (like from Full Synchro and Angry emotions), MegaMan will heal to his maximum HP instead of how much damage Roll would deal.

In later versions, Roll will only heal how much damage she would have dealt as intended.

In the Legacy Collection, this fix is applied, but if Roll is used against an AntiRecv trap, it will drain all of the player’s HP instead of the damage Roll would’ve dealt.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	No
European v1.0	?
Legacy Collection	Yes (partially fixed)

BoyBomb Reserve glitch

If a BoyBomb chip obstacle is on the field and is pushed back and forth (using attacks such as AirShot) until it runs out of HP and destroyed, the panel it was on will still be occupied, even though it is empty. MegaMan will be unable to walk on to that panel for the rest of the battle.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

AntiDamage glitches

AntiDamage GunDelSol visual

If you hold A button for GunDelSol and an AntiDamage ???? trap is active, the AntiDamage will trigger and MegaMan will return but GunDelSol's visual will still play unattached to his arm. GunDelSol will be active but won't drain enemy HP. If MegaMan uses a non-dimming attack or gets hit, GunDelSol will disappear.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	Yes
North American v1.0	No
European v1.0	?
Legacy Collection	Yes

AntiDamage Reserve glitch

When MegaMan with a ???? AntiDamage trap slides across Ice panels; if AntiDamage is triggered in the middle of the slide, it leaves a reserved panel on where MegaMan was supposed to slide to. MegaMan will be unable to walk on to that panel for the rest of the battle.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

AntiDamage Uninstall glitch

If LaserMan's Power Down Laser or his chip hits MegaMan while he has ???? AntiDamage trap on, it will trigger the trap and MegaMan will dodge the damage, but his programs will still be uninstalled.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

AntiMagic Carryover glitch

If AntiMagic is used, it will set up a momentary ???? trap visual. If the Custom Screen is opened while the ???? visual is still up and MegaMan performs a Double Soul, the ???? will remain on MegaMan. It will work as a normal AntiDamage trap and will only disappear once it's triggered or replaced, instead of AntiMagic's momentary trap.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

Chip Trader Black Screen

This works with any Chip Trader. Put in the chips, then press L repeatedly when selecting Yes for confirmation. If successful, the textbox text sound will play as the screen is stuck on complete blackness. Pressing A or B will end the black screen and continue the Chip Trader process.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	No
European v1.0	?
Legacy Collection	?

ColdMan Friendly Fire glitch

This occurs when the ColdMan chip uses its ability to ices over all obstacles on the field and slides an IceCube to the panel MegaMan was on during the summon. The IceCube will collide with MegaMan and deal damage even if he's not physically there. If MegaMan was invisible in that time, the IceCube will shoot past that panel.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

Un-boostable MetalGear

Although the MetalGear chips have attack power listed on them and can be attached with plus chip, the damage they deal does not actually become boosted.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Double Soul Off Field glitches

Double Soul Off Field glitch

In Network Duel, this can only occur to Player 2 on the Link Cable. MegaMan needs to be hit by an attack that knocks back (e.g. GrabBanish, WindRacket) and while in the slide, open the Custom Screen. If Player 2 performs Double Soul during that turn, when they return, MegaMan will keep on sliding and go off screen. There is no way to hit the MegaMan. They cannot use any chips except for screen-dimming cut ins. Whenever they try to unite into another form, they will slide off screen again.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Dark Double Soul Off Field glitch

In Network Duel, this can only occur on Player 2 on the Link Cable and if they're using Evil MegaMan. Evil MegaMan needs to be hit by an attack that knocks back (e.g. GrabBanish, WindRacket) and while in the slide, takes damage or loses HP in a way that triggers Dark Double Soul. Dark Soul will keep on sliding and go off screen. There is no way to hit the Evil MegaMan player. They cannot use any chips except for screen-dimming cut ins. The Dark Soul will eventually return back to the battlefield.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

ShadeMan No Bats quirk

If PoisonPharaoh is affecting ShadeMan, he won’t turn into his bats when attacked and can be damaged normally. In the later versions, ShadeMan will still turn into bats if he’s affected by PoisonPharaoh.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	No
North American v1.0	No
European v1.0	?
Legacy Collection	No

HeatChaser glitches

HeatChaser Breaking glitch

If BurnMan's Heat Chaser is destroyed with a breaking attack, it will spawn a new hitbox on the field and can hit MegaMan seemingly through nothingness. This is due Heat Chaser hitboxes referencing the wrong parent object if you destroy the Heat Chaser as it's firing, it will then spawn a new hitbox through a different attack (e.g. MiniBomb).

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

HeatChaser Obstacle glitch

While BurnMan's HeatChaser is firing off; if you summon any obstacles (e.g. BoyBomb, Mine), the hitboxes will disappear from the HeatChaser's fire until its next cycle.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Counter Hit Trap Indicator

If the Custom Screen is opened while the Counter Hit text is on screen, it will have the opponent ???? Trap indicator shown until the next turn. The ???? text will be in wrong colors in this time.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	No
European v1.0	?
Legacy Collection	?

FireManDS FireCircle error

FireMan’s FireCircle attack is supposed to have (DSLV x 30) attack power, but only stores the low 8 bits so the AP is lower than it should be. For example: 300 AP (0x12C) becomes 44 AP (0x2C).

This results in an attack power of 14 (should be 270) for DSLV 9, and an attack power of 44 (should be 300) for DSLV 10. DSLV 1~8 are not affected.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	No

BomBoy Pitfall glitch

If BomBoy travels to the frontmost panel of their side of their field and gets caught in a Pitfall panel, it will spawn more more bombs over the bomb it's already pushing. It will spawn as many as possible before the Pitfall panel fades. The bombs will then explode consecutively.

Applies to:
Japanese v1.0	?
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	Yes

Double Trap glitch

When a non-dimming trap is triggered; opening the Custom Screen during its animation and changing forms will have MegaMan perform the attack again.

• AntiDmg: When Mega Man changes forms, a second shuriken will drop along with the first one. This second shuriken does no damage.
• AntiSwrd: When Mega Man changes forms, he will cancel his last AntiSwrd animation and start a new one. The 3 Sonic Booms will do no damage.

Applies to:
Japanese v1.0	Yes
Japanese v1.1	?
North American v1.0	Yes
European v1.0	?
Legacy Collection	?

Legacy Collection

BattleChip Pack Order

In the English language version of the Legacy Collection, the Download Chips are placed in unconventional spots when the Pack is ordered in ABCD order.

• PrixPowr being placed with chips starting with G.
• Duo being placed with chips starting with P.