At The Starting Screen (When Your Looking At Ho-Oh Flying) Press UP+SELECT+B And It Will Ask If You Would Like To Delete Saved File
Click new game at the menu
like Pokemon soulsilver and heartgold, you press down on the control pad, the select button and then b button.
Up, Select, B at the main menu the same goes for Soul Silver.
You press 'Up' on the control pad , press 'select',and then press 'B' at the same time on the title screen to delete your save file.
you can't i tried trust me. if you did delete your saved file and you had a Pokemon in the walker it will be there until the battery dies get a new one.
there is no cheat, i know even though i have heartgold once you delete a file you cant get ano ther back.
To delete the file: Select+Up+B at the menu screen. Start a new file: Just press "New Game"
go to release
go to home screen press L R and select and it say do you want to delete profile?
Go to the Pokemon center and in the PC select a Pokemon and click release
You can delete it by clicking it and pressing delete duhhh -miraih snipes
The only way to delete moves is through the Move Deleter, which should be in Blackthorn City.