Boney's right. Union Cave leads to Azelea, which holds the 2nd gym badge. Make sure the game you're playing is licensed by Nintendo, a Game Boy cartidge, silvery-gray with speckles of glitter, and has a Lugia on the sticker.
In pokemon gold, does getting your pokemon a haircut affect anything?
Pokemon Blue Japanese: Where can I buy TM25, Thunder at?
ah sweet, thanks. I'll be sure to get me one of them ;)well nidoran (male) would do fine, you can catch it on route 22, east of viridian city, or nidorna (female), whichever, male is more common on red