I have heard of some effects that cause the game to constantly freeze, constant loss of save file data and a 'battery' damage in the game. The battery damage simply relates to clock events not working. However these are rare, however many games save files can be wrecked by cheat codes.
You have to get an Action Replay or other device that works with your DS. Then you have to enter a code, but BE CAREFUL!!!!!Some codes can wreck your game!
L+R is the only way you can activate them, any other way means there custom made codes and they could wreck your game
Game shark codes
According to Bulbapedia Missingno is a "Glitch Pokemon" so it does exist but if you do find out how to get it it can potentially wreck your game by disrupting saved game data, so I wouldn't risk it
The video game 'Pokemon Emerald' can be affected with codes from the GameShark in that you can do things such as climb walls, as well as catch the legendary Pokemon Mew.
I HIGHLY doubt Pokemon Pearl AR cheat codes will work in Pokemon Platinum =]
Cheat codes that are great to help you win the game
No, each game version is unique and require differnet codes. if you need codes for Pokemon Diamond just Google it.
Answer go towww.supercheats.com
cheats can spoil the game search Pokemon stadium Pokemon codes
Get a game genie.
there is no such game i have all of them and that is not one