2nd Gen 2 questions for Pokemon Crystal

[Hyperpanda]

1.Where do you get Leaf and Thunderstones?

2.What is the Crystal Gameshark Master code???

I really need the 2nd one answered.I've been searching for like 15 minutes and I haven't found it.

 

[ShadowTails]

You get stones from people in the game, stones are limited otherwise, you just get lucky. There is a Lass on the route west of Ecruteke (sp?) I think her name is Dana, if you register her in your phone she'll give you stones usually. Other wise Bill's grandfather will give you a stone if you show him the Pokemon he describes.

Uh... there isn't one?
The GBA games are where they started master codes. I had a GBC gameshark, you just put in the codes, for the newer ones I'm sure it'd be the same, that or you can't use a GBA gameshark on non GBA games.

 

[Hyperpanda]

there is one,isn't there?a master code?I have a gba gameshark im borrowing from a friend and i entered a regular code when i said add new game,then i started and it said no master code.