How do I make my rival appear in Platinum?

Question

It's Saturday at the Survival Area and I don't see him. Do I need to go to Stark Mountain or something?

Comments

I think you need to complete the Stark Mountain event first, I could be wrong though

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> In front of the entrance to the Battleground is a spot where the rival will stand on Saturday and Sunday in Pokémon Platinum.

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I checked there...

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I guess Barry is dead. Hmm, this must have something to do with Stark Mountain (if you never went there). This video shows Barry is in Stark Mountain (https://youtu.be/OCkXeywdbbQ?t=138 ), but he doesn't move. I think you have to do the whole Stark Mountain side quest to get what you want ¯\_(ツ)_/¯.

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At elast it is not as bad as nacy sidequest in b2w2

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Traveling through caves will always seem horrid and time consuming to me.

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According to Serebii, you just need the Nat Dex and to be in the Survival Area

Answer 1

Apparently he appears only after the Stark Mountain sidequest.
source

Comments

he appears after the stark mountain quest

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That's exactly what my answer already said...