Im playing the Legend of Zelda: Minish Cap on my No$gba emulator and I want to use some Gameshark cheat codes. The problem is: Everytime I try to enter a code, even if its real, it just makes that "action-cannot-be-done" sound. What do I do? (BTW I know that the cheats system works because it accepts it when theres nothing in the code part, but not when there is. )