Diamond and Pearl were not the first games that were able to go online. For a while in Japan, it was possible to do that in Pokemon Crystal, but for reasons that remain lost to the depths of time, the service failed miserably and when the game was localized for America and other countries, all of this was removed. It was very similar to today's Nintendo WFC, but to use it, you had to use a special adapter that would link a Gameboy Color to a cell phone. What's also incredible is that in Goldenrod City, the Japanese version did not have a Pokemon Center! Instead, they had a facility called the Pokemon Communications Center that would allow you to connect and it essentially functioned as an early predecessor to the GTS, letting you trade and battle with people online. There was a lot more to it as well, you were also able to get an event Celebi that way and there was a special option on the menu that was able to let you use this functionality for Pokemon Stadium 2. This does sound too good to be true but thankfully, Nintendo did a really sloppy job removing all of this from the english version. The Pokemon Stadium 2 menu option can be partially restored through Gameshark code 010776CF. As for the Pokemon Communications Center, there is also a gameshark code that lets you dig there from Ilex Forest that I have forgotten at the time and I don't really feel like finding it again and testing it, but a quick search should give it to you plus another code that would let you get the event Celebi. If you use the Dig code, you will land in a small room, but by messing around with walk through walls in there, you should be able to access the main area, minus NPC's. Whew, this certainly was a huge textwall, but I'm done typing and I hope you enjoyed this lecture.