Sinnoh's Underground

I loved it, one correction, it doesn't use the WiFi, it uses local area network, thus you can still connect to other players and collect flags, assuming you have friends that have the game as well.

The Underground is one of many reasons that I love the Diamond and Pearl Games. I'm kinda like those gen 1 people sometimes. like the other games were good, but Sinnoh will always be my home. I beat those games more than any other. I went through the hassle of connecting and disconnecting to my other game 30 times so that I could get spiritomb, then proceeded not to use it. all sorts of stuff.

That's why (against current patterns and hope) I keep hoping they will announce a remake of the games. It would mean so much to me to be able to fight Team Galactic, and go unerground, wander Eterna forest with that Chansey Lady, all with the bonus of 3D. Plus I love the elite four in that game.

 

I loved the underground. I had so much fun playing with my BFF and her brother (Since the sprites are the same, depending on your gender, we ran around in circles and got him so confused on who was who), I was quite sad when I lost my copy of platinum... I want to see that feature in another Pokémon game.

 

Underground>Secret Bases imo
I loved setting traps and making my base a puzzle. I'm hoping that they bring it back soon.

 

Oh, don't get me started on Secret Bases. I loved those so much, even before I had to go to school I'd turn on my DSi and play with Ho-Oh on the Secret Bases. Diamond and Pearl were my first ever Pokémon games, and I really think they should (well, they will) make a remake of those games.

 

I relate with @[member="✯Ho-OhLugia✯"] on this one, I played the underground a TON with my sister. It's funny, because my sister usually took no interest in Pokémon games, but after I showed her the underground system-- she played that with me non-stop! I spent hours on it, I hope in a Sinnoh remake we get the underground back. ;7;

 

Sinnoh's underground was one of the best features for DPPt, especially Platinum. The underground's ability to connect with other players ON THE SAME SCREEN blew me away when I was younger; I thought it was the future in the present, to be honest!
Secret bases were just as fun as Hoenn's, and the cooler part was that you could go MINING. Now that...is always fun as hell.

Also... this.

 

I used this all the time to mess around with friends. I especially remember how my brother would get really mad at me for stealing his flag despite it having no negative effects on him.