Johnny Test Codebreaker Codes (USA)
This page contains the Codebreaker Codes that I have available for Johnny Test, a game for NDS. If you are playing on an Emulator you can usually input these codes rather easily by accessing a tab at the top of your Emulator; those of you playing on a physical NDS console will have to use an actual Codebreaker device instead.
For those of you out there who are using an emulator such as Desmume, there is usually a tab at the top of the emulator that will lead you to the section where you can input these codes. If you'd like more information on How to Setup Codes on Desmume NDS Emulator please follow the link provided.
If you don't see the code you're looking for on this page I recommend you return to my Johnny Test Guides and Walkthroughs and choose a different section.
Max In-Game Points: 120A17EC 0000FFFF
Invulnerability/Max Lives: 220A17E8 00000004