Mega Man Battle Network 4 - Blue Moon CodeBreaker Codes (USA)
This page contains CodeBreaker cheat codes for Mega Man Battle Network 4 - Blue Moon (USA). If you're playing on an emulator you can usually input codes very easily by accessing a tab off the top of the toolbar. Anyone playing on a physical Gameboy will need to purchase a physical CodeBreaker device to use these codes.
If you're using an emulator and still can't figure out how to setup these codes, you're in luck! There's two common emulators for GBA games, the mGBA and VisualBoy Advance. Follow the link provided for the emulator you're using to be taken to a guide explaining how to get these codes working.
Don't see the code you're looking for on this page? Head on over to my Mega Man Battle Network 4 - Blue Moon (USA) Gameshark Codes and check for your code there instead!
Mega Man Battle Network 4 - Blue Moon CodeBreaker Master Code
400F354E 8FEA
00003067 000A
1000036C 0007
82001790 0000
82001792 0000
No Random Battles: 820023BE 0000
9999 Bug Frags: 8203B840 FFFE
Always Full Sychro: 320FBEC0 00FF
Max Bug Frags After Battle: 8203B840 FE00
Maximum Map Size: 3200386D 0002
Don't leave this code on.
Buster Level S: 320F582E 000B
Cheap Chip Trader: 3200B1C0 0000
Custom Gauge Always Full: 32036415 0040
Have Duo Chip: 1200A554 00000137
Operation Battle: 020CB230 000000FF
Z-Saber Z Secret Chip: 8203B840 32DA
Unlimited HP
8203B1A4 270F
82035844 270F
Have All Navi Blocks
42000306 0000
0000005B 0002
42003892 0909
0000005B 0002
42005A12 7171
0000005B 0002
Have All Navi Customizer Blocks
3200243A 00FF
320024B7 00FF
Have All Souls
8200242E FFFF
32002430 00FF
Chips Deal 5000 Damage A Hit
42035CBE 1388
00000005 0002
Have All Subchips
420002F0 0000
00000003 0002
4200387C 0404
00000004 0002
420059FC 7171
00000003 0002
Instantly Defeat Enemies (Press Select + Up)
74000130 03BB
32035815 0000
Free Net Deals
7200A512 0002
4201A006 0000
00000005 0008
Have Complete Library + PA
42000670 0000
000000BC 0002
42002704 FFFF
00000016 0002
42005AE0 4747
000000B0 0002
420028D4 6363
00000136 000C
420028D6 6363
00000136 000C
No Random Battles (While Running)
7200A622 0202
3200A600 0080
7200A622 0101
3200A600 0000
D0000020 0008
3200A600 0000
Weapon Charges Quickly
72035B52 0001
32035B52 0081
Zenny Earned Faster
7200A534 8996
8200A554 C350
Rapid Fire
720F5B2A 0300
320F5B64 0028