Can you use cheats on Pokemon diamond without action replay?

Answer 1

There is the Cloning Cheat (the only one I know without action replay)that is considered better because the action replay because:

1. The action replay costs money.
2. It takes FOREVER to put in action replay codes.
3. This code (and several others) can severley damage your game.

Google it. Some person erased it.

1.Capture all the Unowns in the alphabet and go to the unown maniac and he would be gone but a tunnel is there,you can catch Unown ? & !

2.There is a adamant orb/Lustrous orb at Spear Pillar where you bsttle Diagla/Palkia.

3.Battle Unowns 100 times and you battle a Celebi.

4.Talk to a sailor or his wife to capture Cresselia at Canalcave city(after getting national pokedex).