u need a DS that has a gameboy slot in it first
insert a megaman battle network game in the game boy slot(it doesnt matter which one)
and in your starforce 1 game pulse into the dog house in echo ridge u should see a EM wave ball thingy and theres a little cutscene and then u need to find a jammer(i cant remember where it is)and when u defeat it u go back to the dog house and another cutscene will come and Megaman gives Megaman the BN buster.
hope i helped
Insert one of any Megaman Battle Network edition games into the GBA slot of your DS. You should get an email from the Satella Police as you start up the game.
go to the big wave and input the right code
Megaman Starforce 3
megaman starforce 1 2 and 3
No sadly since starforce 1 and 2 cannot connect, neither can starforce 3. Since there are different types of powers in each game they cannot connect to eachother.
there is talk of a new megaman for 3ds
you buy it from a shop
gamestop
June 30
you can't
There are a bundle of cheat codes available to the Megaman Starforce 3 series that can be found online. The cheats are available on GameFaqs database.
you need joker key
it was a download event
I t comes out July 30 2009