It depends on the game.
go to codejunkies.com
it is loaded with cheats to put it on
it is easy if there is a code. you just enter it.
BEWARE they told me at game stop if you enter it incorrect it could screw up your ds
put me in Pokemon
no
you need to get codes and put them in
when it is saving take it out. but be warned. it will delete all of your cheats for your action replay. trust me i did it.
You have to put the cheats into an Action Replay.
A GBA action replay can have GBA cheats, but you can't put GBA cheats on an Action Replay DS even if you intend to use it on a regular DS with a GBA slot.
Get your money back
it has preinstalled cheats, just put the Pokemon Diamond (or Pearl) cartrage in the action replay and put the action reply in the DS and turn the power on and then turn on the cheats and start the game
You don't have to download them, but you need to put them in the device manually.
Put it in the Games console and wait for it to load. Then ,usually, remove the action replay disk and put your game disk in. It will then load the cheats for that game.
I only know how to put cheats with the new action replay first you go to thecode list menu on the game you want to the cheats on then select the cheats that you wanna put the cheats on then take out your action replay and put in the game then on the bottom screen there should be a red button that says start tap that button then u could play the game with the cheats that you selected. but they dont work on TTDS and R4DS
you can buy a action replay for your ds at gamestop then search for codes to put on it