Mega Man Battle Network 4 - Blue Moon Gameshark Codes (USA)
This page contains Gameshark 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 Gameshark 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) CodeBreaker Codes and check for your code there instead!
Mega Man Battle Network 4 - Blue Moon Gameshark Master Code
193565BF 4742D9F1
6D6AE025 23CA30AE
Instantly Delete Enemies
Press Select + Up
C273D1CD 6F22F48D
0738ECE9 743BE779
Instantly Delete Enemies
Press Select
6D473537 693E0D4D
0738ECE9 743BE779