Cheat problem.

I am playing Summon Night: Twin Age at the moment and the problem is the when i have input a cheat into the emulator the cheat remained into the game even after i have taken it off and reset the emulator. For my other games i don't have a problem but only for this specific game. Are there anyway to fix it? i am using Desmune 0.9.6x right now.Thanks in advance.

Some cheats do permanently changes the save file for the game itself when you play depending on the code used, most likely if your still seeing the effects of said code and to totally get rid of it you will have to create a new game and start all over.