It's on island 2. You have to have friend along for it to work.
Buy it in the game corner.
In the game corner
In the Pokemon game corner
Kill THEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Obviously it's in Celadon City.
in the safari zone or you can buy it at the game corner
You can buy the TM at the game corner for 4,000 coins.
Next to the Celadon game corner
After beating the boss at the Rocket Hideout in the Celadon Game Corner.
You need the silph scope which you get in the rocket game corner.
you can only buy it from the game corner in the city with erika
Defeat Giovanni in Celadon Game Corner and he will give you it.