This cannot be answered without more information, apart from this.
Games vary in how you input a cheat. Some require pausing, or input during play, maybe on a specific screen.
It depends how you define cheat and also what game
Just enter the cheat code during the game play.
You don't enter the cheat codes on a menu, you just enter them during game play!
Just play the game and enter the cheat code you want
well... to know the cheat in Pokemon emerald just watch a you tube just type this, how to cheat in Pokemon emerald..now just enter ..ok
there is none you just enter it during gameplay
there is a cheat you can use that unlocks all of the objects, it is very useful. just enter this cheat during game play: L2, R2, Up, Triangle, L3
You hit the B button when you have it highlighted then you enter the cheat name then you enter the code. P.S. You do not have to enter the whole cheat name you can just abbreviate the name.
You just type in the desired cheat during gameplay.
during game just type in the code. if it dosent work do it again. still dosent work try pausing it then typing in the code
while on the game just press the buttons for the cheat you want to make, if entered right you will hear a sound that confirm that you have successfully entered the cheat
There is none, you enter codes at home screen where it says load game, new game, etc.
you just enter a code, the after that go to my wwe, and save game