Stadium: Tips This is how to get a lot harder mini games:Set the setting's on Whose The Best, and Hard mode. If you beat hard mode on whose the best five times in a row you will open an R-2 mode for the Kids' Club.
~Josh

To help you get through the maze of invisable walls at Koga's Gym, upload Your R, B, or Y game to Pokemon Stadium. There will be four little dots on squares with invisible walls on them.
~ Josh