You have to buy a action replay cartridge. Then go on codes and type in the codes.
you can't do that you need a action replay or R4 if you want cheats. or.... you could probably use the events to get legendaries.but i know you can't use cheats without a action replay
No
NO!
Use an action replay.
No, Action Replay isn't made by the same company.
Theres none so check google for game shark codes or use action replay and use action replay cheats for your gameboy
use 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.
no you can enter them in manualy
You use action replay
Yes
Install the Action Replay software on your PCRun the Action Replay ProgramConnect your Action Replay to your PC via USBDownload a new cheats file and add it to your Action Replay.