Use a walkthrough. They're found on gamefaqs.com and myriad other gaming websites. Or, use a YouTube walkthrough. There are plenty of those. But don't use this media for that kind of question. It's infuriating and pointless, since the question is so vague that anyone who wants to answer it would be forced to outline the story itself and write a walkthrough in response to your question.
no you can only link megaman games together if it is the same number like megaman battle network 3 blue to megaman battle network 3 white
Buy it for 90 bugfrags from the bugfrag trader in the lower level of Yoka 1 in Blue. Press is required in the NaviCust for access. Buy it from a ghostnavi net-trader in Secret Area 2 in White.
Trade.
you cant
hit start go to megaman then go to navicust
In Megaman Battle Network 6, It doesn't have The Undernet 3, but it has Undernet Zero where you can fight Bass at there.
google them even though i dissaprove of cheating in megaman games
No, it's not.
Go to the Under Square.
Go to GameFAQs; they have a chip list FAQ.
You can buy one of those in Yoka square.
In MegaMan Battle Network White 3, Geddon 3 can be found in the Undernet area, specifically in the area known as Undernet 2. You need to navigate through the Undernet, defeating enemies and solving puzzles to reach him. Once you locate Geddon 3, you can challenge him to a battle to progress in the game.