Cheats & Guides

Mega Man Battle Network 4: Red Sun Cheats For Game Boy Advance

  1. Secret Boss

    To get past the gate in Ura Internet area 5, you need all 150 regular chips. Once you get past it, you can fight the secret boss, Forte, and get his chip, Forte.

    Contributed by: White Dragon Nall 

  2. Secret Dungeon

    There is a large hole surrounded by purple slime on a platform in Ura Internet area 6. In order to approach it, you need the chips ''Bug Charge'', ''Muramasa Blade'', ''Black Wing'', ''Element Dark'' and ''Poison Anubis''. Once you get close enough, it will suck you down to the secret dungeon, Black Earth.

    Contributed by: White Dragon Nall 

  3. Secret Boss 2

    After completing the Black Earth dungeon, exit (plug out) and re-enter. You can now encounter Forte SP in Black Earth area 2, and obtain Black Barrier from him.

    Contributed by: White Dragon Nall 

  4. Avoid Random Battles (JP Version Only)

    To avoid random battles, save your game about every 20 steps. This will reset the game's random seed, which also resets when your next random encounter will be. Now you can go through the entire 'Net without running into a single fight, or resetting your system because you got into a fight!

    Contributed by: genotheblaster 

  5. Secret Boss: Duo SP

    One more thing to add:

    To fight Duo SP, you need to have all the 7 symbols

    1 for Duo
    1 for Soul Complete
    1 for Standard library complete
    1 for Mega Library Complete
    1 for Giga Library Complete
    1 for P.A. Complete
    1 for Forte SP

    Go back to where Duo was and fight him there!

    Contributed by: Mastermind Chaud 

  6. Easily defeat Dark users in Multiplayer

    In multiplayer, Dark users are very tough because they become the Darksoul when you reduce them to 0 hp. However, if you use a chip or PA that freezes time and deals many hits, you can kill them without allowing them to become the Darksoul. A great example is the Pile Driver PA. Hope this helps you take out those cheap Darkies!

    Contributed by: kefkakrazy 

  7. NumberMan Trader Codes

    When Higsby gets the NumberMan Trader, enter these codes to get the items.

    Effect Effect
    77038416 AirHockey 3 V
    25435428 Beat(NC Block)
    43494372 Body Pack(NC Block)
    05178924 Buster Pack(NC Block)
    19095677 ColorPoint *
    75420107 Custom2(NC Block)
    46292983 FlameLine 1 G
    57604335 FlameLine 3 J
    59891137 FullEnergy
    84625799 FullEnergy
    74293099 GunDelSol EX G
    30873642 HP+500(NC Block)
    97618739 HP+500(NC Block)
    27979609 LockEnemy
    37198940 LockEnemy
    02109544 MegaFolder2(NC Block)
    16589650 MiniEnergy
    45798331 MiniEnergy
    66703422 Recover300 J
    73298100 Rush(NC Block)
    32108251 Snake R
    24247309 SneakRun
    89866302 SneakRun
    10170506 Tango(NC Block)
    88019791 TwinFang 3 G
    00274304 Unlocker
    94872322 Unlocker
    14769745 Untrap
    02368995 Untrap
    03696458 VariableSword C
    68009092 WideShot 3 T

    Contributed by: Adori 

  8. Obtaining Giga-Level Battle Chips

    To obtain the rare giga-level battle chips, you will have to complete some of the game's most arduous tasks. It is expected that you have an almost full-library and high stats before attempting to obtain most of these.

    Unlockable Unlockable
    Defeat either ShademanSP or LasermanSP without destroying the Green Mystery Data to obtain this giga-level chip. Bug Charge
    S-Rank ForteSP, a random encounter in Black Earth 2 to obtain this chip. Darkness Aura
    Defeat Forte behind the Standard Gate in the Ura-Internet to obtain this chip. Forte
    Bought from a Shop in Ura-Internet 4 for a whopping 100 BugFrags Holy Dream
    Talk to Yuuichiro at ANSA before the end of the game and he will give you this chip Red Sun Ray

    Contributed by: Magenta Galaxy 

  9. NeoVari Attacks

    After you get the chip NeoVari N from Undernet5, you can push the A button for a slash that does 240 DMG. But, if you put in certain combonations while you hold the A button down, you can increase the range of the sword.

    Effect Effect
    Down, Right, Up Cross Sword
    Up, B, Down, B, Up Double LifeSword
    Left, Right, Left, B Super Sonic Boom

    Contributed by: Dalent 

  10. First (or All) Seven Save Icons

    The Save Icons are as follows:

    Unlockable Unlockable
    Beat ForteSP in Black Earth 2 Forte's Icon
    Get All 5 Giga Chips GigaComplete
    Get All 60 Mega Chips MegaComplete
    Beat Duo in Normal Mode Meteo Red Sun Icon
    Use All 30 Program Advances PA Complete
    Get All 6 Souls SoulComplete
    Get All 150 Standard Chips StandComplete

    Contributed by: genotheblaster 

  11. Code to get in to Park Area

    Once you beat the normal Navi decode this AJEKDUR2437561 and put it into the Staff Code window.

    Effect Effect
    RAEJDUK Get into Park area 1

    Contributed by: NinjaBoy90210 

  12. Hard Mode/Super Hard Mode

    Unlockable Unlockable
    Choose second choice after beating game. Hard Mode
    Choose the second choice after beating Hard Mode. Super Hard Mode

    Contributed by: ZEROEXE VERSION 200 

  13. Secret VarSword codes

    Once you get the VarSword chip you can use "secret swords attacks" in every battle you want . When you are in a battle select the VarSword chip , press and hold A and enter this codes quick.

    Effect Effect
    Left,Left-Down,Down,Down-Right and Right Hero Sword Attack
    Down,Left,Up,Right and Down Life Sword Attack
    Down,Down-Right and Right Long Sword attack
    Left,B,Right and B Sonic Slash Attack
    Up,Up-Right,Right,Right-Down and Down Wide Sword attack

    Contributed by: Crono exe 

Walkthroughs & FAQs

Type Name File Size
Foreign Language FAQs FAQ/Walkthrough by juanca45002 128K
General FAQs FAQ/Walkthrough by Magenta Galaxy and Malinhion 214K
General FAQs FAQ/Walkthrough by Adori 410K
General FAQs FAQ/Walkthrough by Soniclover 88K
General FAQs FAQ/Walkthrough by Nine 16K
General FAQs FAQ/Walkthrough by scott231ca 174K
General FAQs FAQ/Walkthrough by Chibi Soma 167K
General FAQs FAQ/Walkthrough by GiroroGochou 289K
General FAQs FAQ/Walkthrough by The Sound Defense 233K
General FAQs FAQ/Walkthrough by memnarch6 253K
In-Depth FAQs Alphabetical Folder FAQ by The Dark Unknown 133K
In-Depth FAQs Battle Chip Guide by DX Xetrov 182K
In-Depth FAQs Battle Network 4/Zero 3 Link FAQ by Shift Breaker 11K
In-Depth FAQs Beginner FAQ by Malinhion 30K
In-Depth FAQs Boss FAQ by The Dark Unknown and Mastermind Chaud 127K
In-Depth FAQs Chip Attributes FAQ by wise words eats aplz 10K
In-Depth FAQs Chip Code Location FAQ by Kirby thefOOdbuster 84K
In-Depth FAQs Chip List by ProtoMan V3 and Mastermind Chaud 29K
In-Depth FAQs Chip Trader FAQ by Asakura Yoh 9K
In-Depth FAQs Dark Chip Guide by White Dragon Nall 16K
In-Depth FAQs Free Tournament FAQ by Chief Clancy Wiggum 51K
In-Depth FAQs Higsby's Shop FAQ by mmx2k2 17K
In-Depth FAQs Mystery Data Guide by Supershadow1027 17K
In-Depth FAQs Navi Customizer Guide by zidanet129 24K
In-Depth FAQs NaviCust Setup Building Guide by Estil 26K
In-Depth FAQs NetBattle Strategy Guide by Magenta Galaxy and The Dark Unknown 171K
In-Depth FAQs Program Advance Guide by zidanet129 18K
In-Depth FAQs Red/Blue Differences FAQ by The Dark Unknown 42K
In-Depth FAQs Renowned Folder FAQ by Asakura Yoh 70K
In-Depth FAQs Shop List by The Dark Unknown 89K
In-Depth FAQs Soul Unison Guide by zidanet129 23K
In-Depth FAQs SP Navi S-Ranking FAQ by DarthMarth 49K
In-Depth FAQs Virus FAQ by DarthMarth 35K
In-Depth FAQs Water God System Guide by LeviticusLo 12K
In-Depth Guides Mega Man Series Ending FAQ by ReyVGM 268K
Maps and Charts Area Maps by MegaBoy 1566K
Maps and Charts Water God Computer Map by danstu 24K
Other Codebreaker Codes by mmx2k2 64K

Mega Man Battle Network 4: Blue Moon Cheats For Game Boy Advance

  1. Secret Boss

    To get past the gate in Ura Internet area 5, you need all 150 regular chips. Once you get past it, you can fight the secret boss, Forte, and get his chip, Forte Another.

    Contributed by: White Dragon Nall 

  2. Secret Dungeon

    There is a large hole surrounded by purple slime on a platform in Ura Internet area 6. In order to approach it, you need the chips ''Bug Curse'', ''Muramasa Blade'', ''Black Wing'', ''Element Dark'' and ''Poison Anubis''. Once you get close enough, it will suck you down to the secret dungeon, Black Earth.

    Contributed by: White Dragon Nall 

  3. Secret Boss SP

    After defeating Forte in Ura Internet 5, Forte SP can be randomly encountered in Black Earth 2. He can drop Delta Ray Edge in Blue Moon, and Black Barrier in Red Sun.

    Contributed by: JezterMan Exe 

  4. Avoid Random Battles (JP Version Only)

    To avoid random battles, save your game about every 20 steps. This will reset the game's random seed, which also resets when your next random encounter will be. Now you can go through the entire 'Net without running into a single fight, or resetting your system because you got into a fight!

    Contributed by: genotheblaster 

  5. Secret Boss: Duo SP

    One more thing to add:

    To fight Duo SP, you need to have all the 7 symbols

    1 for Duo
    1 for Soul Complete
    1 for Standard library complete
    1 for Mega Library Complete
    1 for Giga Library Complete
    1 for P.A. Complete
    1 for Forte SP

    Go back to where Duo was and fight him there!

    Contributed by: Mastermind Chaud 

  6. Woodman and Nintendo DS glitch

    You need the Blue Moon version for this. If you play the Woodman story on a DS, you will encounter this glitch. When you jack-in to the Park Area and Woodman attacks you, go into a random battle. Run away or delete the viruses. The screen will turn white and freeze. The only way to stop this glitch is to play the Woodman story on a Gameboy Advance SP or on a regular Gameboy Advance.

    Contributed by: meteorgun7 

  7. NumberMan Trader Codes

    When Higsby gets the Numberman Trader machine in the shop, enter number codes to get various items.

    Effect Effect
    77038416 AirHockey 3 V
    25435428 Beat(NC Block)
    43494372 Body Pack(NC Block)
    05178924 Buster Pack(NC Block)
    19095677 ColorPoint *
    75420107 Custom2(NC Block)
    46292983 FlameLine 1 G
    57604335 FlameLine 3 J
    59891137 FullEnergy
    84625799 FullEnergy
    74293099 GunDelSol EX
    30873642 HP+500 (NC Block)
    97618739 HP+500(NC Block)
    27979609 LockEnemy
    37198940 LockEnemy
    02109544 MegaFolder2(NC Block)
    16589650 MiniEnergy
    45798331 MiniEnergy
    66703422 Recover300 J
    73298100 Rush(NC Block)
    32108251 Snake R
    24247309 SneakRun
    89866302 SneakRun
    10170506 Tango(NC Block)
    88019791 TwinFang 3 G
    00274304 Unlocker
    94872322 Unlocker
    14769745 Untrap
    02368995 Untrap
    03696458 VariableSword C
    68009092 WideShot 3 T

    Contributed by: Adori, ZEROEXE VERSION 200 

  8. Obtaining Giga-Level Battle Chips

    To obtain the rare giga-level battle chips, you will have to complete some of the game's most arduous tasks. It is expected that you have an almost full-library and high stats before attempting to obtain most of these.

    Unlockable Unlockable
    Talk to Yuuichiro at ANSA before the end of the game and he will give you this chip Blue Moon Ray
    Defeat either ShademanSP or LasermanSP without destroying the Green Mystery Data to obtain this giga-level chip. Curse of Bug
    S-Rank ForteSP, a random encounter in Black Earth 2 to obtain this chip. Delta Ray Edge
    Defeat Forte behind the Standard Gate in the Ura-Internet to obtain this chip. Forte Another
    Bought from a Shop in Ura-Internet 4 for a whopping 100 BugFrags Signal Red

    Contributed by: Magenta Galaxy 

  9. First (or All) Seven Save Icons

    The save icons are as follows:

    Unlockable Unlockable
    Beat Duo in Normal Mode Blue Moon Ray Icon
    Beat ForteSP in Black Earth 2 Forte's Icon
    Get All 5 Giga Chips GigaComplete
    Get All 60 Mega Chips MegaComplete
    Use All 30 Program Advances PA Complete
    Get All 6 Souls SoulComplete
    Get All 150 Standard Chips StandComplete

    Contributed by: genotheblaster 

  10. NeoVariableSword codes

    1.Select a NeoVariableSword in the custom menu
    2.Press "OK"
    3.Hold "A" when that chip appears and quickly input one of the codes below:

    Effect Effect
    Down, Right, Up Cross Sword
    Up, B, Down, B, Up, B Double LifeSwords
    Left, Right, Left, B Piercing Sonic Slash

    Contributed by: OmegaEuzan 

  11. Extra Modes

    Unlockable Unlockable
    Complete Normal Mode, Go to continue and then go to the second option. Hard Mode
    Complete Hard mode. Go to continue and then go to the 2nd option (the one with a 3) Super Hard Mode
    Beat super hard mode and go to continue and you will have an option to start a fourth game. Super Hard Mode 2

    Contributed by: Shift Breaker, Mastermind Chaud, Musica13 

  12. Secret VarSword codes

    Once you get the VarSword chip you can use "secret swords attacks" in every battle you want . When you are in a battle select the VarSword chip , press and hold A and enter this codes quick.

    Effect Effect
    Left,Left-Down,Down,Down-Right and Right Hero Sword Attack
    Down,Left,Up,Right and Down Life Sword Attack
    Down,Down-Right,Right Long Sword attack
    Left,B,Right and B Sonic Slash Attack
    Up,Up-Right,Right,Right-Down and Down Wide Sword attack

    Contributed by: Crono exe, ofirissmart 

Walkthroughs & FAQs

Type Name File Size
Foreign Language FAQs FAQ/Walkthrough by juanca45002 130K
General FAQs FAQ/Walkthrough by Chibi Soma 167K
General FAQs FAQ/Walkthrough by GiroroGochou 289K
General FAQs FAQ/Walkthrough by scott231ca 174K
General FAQs FAQ/Walkthrough by The Sound Defense 233K
General FAQs FAQ/Walkthrough by Magenta Galaxy and Malinhion 214K
General FAQs FAQ/Walkthrough by Adori 410K
General FAQs FAQ/Walkthrough by memnarch6 253K
General FAQs FAQ/Walkthrough by Soniclover 88K
General FAQs FAQ/Walkthrough by Nine 16K
In-Depth FAQs Alphabetical Folder FAQ by The Dark Unknown 133K
In-Depth FAQs Battle Chip Guide by DX Xetrov 182K
In-Depth FAQs Battle Network 4/Zero 3 Link FAQ by Shift Breaker 11K
In-Depth FAQs Beginner FAQ by Malinhion 30K
In-Depth FAQs Black Earth Area FAQ by The Proud Canadian 30K
In-Depth FAQs Boss FAQ by The Dark Unknown and Mastermind Chaud 127K
In-Depth FAQs Chip Attributes FAQ by wise words eats aplz 10K
In-Depth FAQs Chip Code Location FAQ by Kirby thefOOdbuster 54K
In-Depth FAQs Chip List by ProtoMan V3 and Mastermind Chaud 29K
In-Depth FAQs Chip Trader FAQ by Asakura Yoh 9K
In-Depth FAQs Dark Chip Guide by White Dragon Nall 16K
In-Depth FAQs Free Tournament FAQ by Chief Clancy Wiggum 51K
In-Depth FAQs Higsby's Shop FAQ by mmx2k2 17K
In-Depth FAQs Mystery Data Guide by Supershadow1027 17K
In-Depth FAQs Navi Customizer Guide by zidanet129 24K
In-Depth FAQs NaviCust Setup Building Guide by Estil 26K
In-Depth FAQs NetBattle Strategy Guide by Magenta Galaxy and The Dark Unknown 171K
In-Depth FAQs Program Advance Guide by zidanet129 18K
In-Depth FAQs Red/Blue Differences FAQ by The Dark Unknown 42K
In-Depth FAQs Renowned Folder FAQ by Asakura Yoh 70K
In-Depth FAQs Shop List by The Dark Unknown 89K
In-Depth FAQs Soul Unison Guide by zidanet129 23K
In-Depth FAQs SP Navi S-Ranking FAQ by DarthMarth 49K
In-Depth FAQs Virus FAQ by DarthMarth 35K
In-Depth FAQs Water God System Guide by LeviticusLo 12K
In-Depth Guides Mega Man Series Ending FAQ by ReyVGM 268K
Maps and Charts Area Maps by MegaBoy 1566K
Maps and Charts Black Earth Map by Captain Ascii 12K
Maps and Charts Meteor Computer Map by Owvin 77K
Other Codebreaker Codes by mmx2k2 64K