Question

I know you have to hit certain buttons. I'm playing Platinum and using a DSlite.

EDIT: Does this lose all your progress or just reboot to when you saved?

Answer 1

Press:

• Select
• Start
• L
• R

All at once. You'll reboot to where you last saved.

Comments

It's best to do this if you're shiny hunting legendaries.
I would save right in front of the legendary and interact and soft reset until it's shiny.
This could take long however. If you really want a shiny it might take 10,000 soft resets.

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I wish I could up vote more...thx!