|Inside the Game Corner you can find a total of 250 coins using the
Item Finder. Each slot machine has a varying win/loss ratio so be
sure to experiment until you get to one you like.
At the top of the screen, you'll find a Team Rocket member in
front of a poster. Beat him then search the poster to open a secret
entrance to the right.
There are 4 floors to the Game Corner's Team Rocket hideout.
Check all of the rooms to make sure you get all 12 items from the
PokéBalls scattered throughout the place. There are 10 rocket
members as well as their leader, Giovanni. To open the gates to the
elevator, beat the Rocket in the 4th basement and then talk to him
afterwards. Before confronting Giovanni you'll have to battle Jessie
and James again (Yellow only). Then you can go confront Giovanni and
recover the Silph Scope.