In Basement Floor 3 there is a Rocket Grunt standing in the corner of the room, battle him and he will drop the Lift Key. If the key doesn't appear right away move away from the Rocket and the item will appear.
you have to defeat team rocket at their secret base at the game corner and the boss drops it after you defeat him
I think it's the Silph Scope that you need for Lavender Town and it's in the hidden Team Rocket base in the Celadon Game corner on the 4th Floor and Giovanni has it.
after beating the team rocket executive the murkrow knows the answer and you need to follow it through the base to the door
It is underground
You go back to Lavender town and go to the top of Pokemon tower. Before that you have to do the poster thing in the game corner and invade an enemy base... POKEMON STYLE!
at the bottom of the base and in what game
You can't beat the rocket game corner. You can get coins at the slot machines. There is a part of the story where you have to enter the secret base under the game corner and defeat team rocket there.
The purpose of going into the game corner is so you can infiltrate the Team Rocket base in the basement.
Celadon City you will need to battle the Rocket infront of the poster in Celadon Game corner.
To get to the Team Rocket base underneath the Game Corner you have to press "A" on the poster that the Team Rocket Grunt was facing near the coin purchase counter.
You're in team rocket base, right? If you are then keep defeating people until one says "whoops I dropped it" then you pick it up and there you have it you can use the elevator.
Kill THEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You probably mean the silph scope, you get it from the secret team rocket base in the celadon game corner.
you have to defeat team rocket at their secret base at the game corner and the boss drops it after you defeat him
go to the game corner and go to the poster and press a in front of it. go into the team rocket base. beat Giovanni and he will give you the silph scope.
First you go to the team rocket base in the game corner (behind the poster) and you go down 2 flights of stairs. find your way through the trick panels on the ground to the bottom right corner. i don't know how to get the key, but that's how you get there.
Go to the Game Corner in Celadon City, and battle the Team Rocket Grunt in front of the poster. Then press the switch on the poster and you should be able to get into the Team Rocket hideout. After beating Giovanni he will give you the Silph Scope.