Is there anyway to make a homebrew program like the nitro hax (which is a cheat system in the slot-one card for a DS game pack) for the gba. What I'm trying to say is that does anyone know if we can make a Action Replay for the GBA homebrew for a gba game (legit one). Would it be possible to make a homebrew on the slot one card for a legit slot-two game like Fire Emblem: The Sacred Stones?
Edit1: Can't believe I spelled gameshark wrong.
Edit1: Can't believe I spelled gameshark wrong.