Heavy armored soldier 2 change gold finger shark code

1 First open the emulator, then click on the gold finger, then click on the gold finger list, click on the code, enter the gold finger, if the gold finger is not used, click on the side of the three buttons to enter the gold finger on the line 2 First open the emulator, load the GBA game, because if you do not run the game, the gold finger can not be used. After that, click on "Modify" and select it from the drop-down menu that pops up.