It's simple after you beat the rocket grunt that was standing in front the poster and press a then you'll see a staircase go down that.
The purpose of going into the game corner is so you can infiltrate the Team Rocket base in the basement.
In the game corner
Celadon City you will need to battle the Rocket infront of the poster in Celadon Game corner.
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.
Defeat team rocket at the game corner to get the silph scope.
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.
In the game corner
That's because in Gold Team Rocket do not take over the Game Corner. Instead they take over the Radio Tower.
B4 of the rocket game corner defeat the boss rocket to get it.
You simply talk to the Rocket Grunt next to the poster at the back of the Celadon Game Corner and he will fight you. If you win, he will leave. Talk to the poster, and some stairs appear. Go down them.
in cleadon game corner
The boss of team rocket leaves it behind after defeating him in the rocket game corner.
A rocket grunt drops the key on B3.
The Rocket Key is the Elevator Key that powers the elevator in the Celadon City Rocket Headquarters, under the Game Corner.
Rocket game corner prize for 5000coins
In the game corner in celadon city.