It's because the game you have inserted isn't in your ar's codelist if you have the program you can drag and drop the codelist from the "MY CODELISTS" section into the "Nintendo DS" section. That should solve your problem.
where is heaven's pipe in Pokemon diamond i have the action replay
No. Oshawatt is not present in Pokemon Diamond.
You Can ONLY Get Celebi In Pokemon Diamond By Using Action Replay.
buy a action replay or cheat cartridge with Pokemon diamond on it
first you should check if you accidentally deleted diamond from the action replay.if you did your going to have to re-add it. i hope this helped
The hackers for action replay are still working on making transformation codes try asking again in 1-6 months (>^.^<)
Use an Action Replay!!!!!!!!!
Yes.
you can if you have an action replay
Find an action replay code and program it, that's how you get many masterballs on Pokemon diamond action REPLAY. ;)
There is no such Pokemon as Mewthree it is a hacked Pokemon, so consequently it cannot be obtained in Pokemon Diamond.
action replay