It is where you enter the house. Catch the bat with the key and the basement door to the left of the house will be open.
There is a lock on the basement door.
When you grab the key from the bat, the basement door (left side) opens.
Catch the bat on the roof and use the key to get in the basement.
its behind the radio tower next to the name raters house but you need the basement key from the rocket executive
Catch the flying bat to get the key. The lock on the basement door is now open (left side).
You walk over to the far left side of the house, where the basement door is now unlocked.
It is in the Pokemon House (in the basement), left of Cinnabar Island.
you find the basement key in the underground path
Climb to the roof and you can jump up and grab the key. The basement door at the left of the house will be open.
because they were friends
A basement of a house is the room or space that is below ground level. A basement appliance that can heat your house is a furnace.