Why Does Pokémon Platinum Say "Connect to Wii"?

The "Connect to Wii" option in Pokémon Platinum refers to the now-defunct Nintendo Wi-Fi Connection service, which allowed online trading, battling, and events.

This service was permanently shut down in May 2014. The servers no longer exist, and the DS's Wi-Fi technology is incompatible with modern internet standards.

What Still Works Offline

• Full single-player campaign: Complete the story, catch Pokémon, explore Sinnoh.
• Local wireless: Trade/battle with nearby friends who also have Platinum (no internet needed).

While online features are gone, the core game remains fully playable and enjoyable offline.