You have to beat the all of the rockets. Press A on one of them and he drops it
beat a team rocket on floor 4 talk to him after you beat him and you get the key
If you want to get the card key, you must use the elevator and go to 5th floor. Then done.
You don't
You beat a grunt, and when you beat him he drops the LIFT KEY and you can use it to get to the top floor and face Giovanni ;D
A rocket grunt drops the key on B3.
beat a team rocket on floor 4 talk to him after you beat him and you get the key
In pikachu's snatch
the giant pokeball on the arena floor is an elevator to the pre gym basement. you need the elevator key to get in.
You get the key card from inside the Silph Co. and head to the 5th floor via the elevator.
In Pokémon Colosseum, you can obtain the elevator key in the Cipher Lab. After defeating the two Go-Rock Squad members in the lab, you'll find the key on a table in the room. This key is essential for accessing the elevator that leads to the upper levels, where you'll confront more of Cipher's forces.
You can get the elevator key by the second to last floor in the shadow machine place(in the room where that scientist is at)
If you want to get the card key, you must use the elevator and go to 5th floor. Then done.
You are never unable to use the elevator in Pokemon.
you can not
In Pokémon Red, after you obtain the Key Card from the Team Rocket hideout, you can operate the elevator by going to the elevator door in the building. Simply press the button on the panel next to the door to call the elevator. You can then select which floor you want to go to by interacting with the buttons inside the elevator. This allows you to access different levels of the Team Rocket hideout and progress in the game.
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.
You don't