Gameshark for GBA online

[Tralphy]

anyone out there making a gameshark for gameboy advance online emulator from nintendo switch or how would you even go about modifying game code if even possible.

 

[kidkat210]

Look in the main cheat thread. Some people ate working on codes

 

[FAST6191]

I am not sure where you are heading.

If the emulators can run custom ROMs you can hardpatch the cheats with tools like https://gbatemp.net/threads/gbaatm-rebirth-gba-auto-trainer-maker-a-new-hope.564321/

When it comes to emulators then many times the emulated device will have its memory present in an easy to find location. To that end if you can calculate it you can adapt existing codes into codes that work with system level cheat formats (hold this memory location is easy enough to adapt into hold this memory location in this case for the Switch, give or take pointers changing the location of the emulated system memory).
https://doc.kodewerx.org/hacking_gba.html covering GBA code formats, and should also have decryption tools if your chosen website still lists encrypted codes.
Not sure what we are linking for Switch cheat code formats but should be easy enough to find as they go with the custom firmwares most of the time.