How do you get to the key in Pokemon mansion? - Answers

head straight along the red carpet until you see a stairs up. Go up and you'll be in level 2 now. From here, if you choose to go up there will be trainer upstairs as well as some interesting note about Mew. Anyway, from level 2, Press the switch in the statue, so its eyes doesn't glow now. Head to the North- western corner of the room, and take the stairs to level three. Here, press the switch on the statue again. Go down, and you supposed to see a scientist there. In any case, go through him and drop down though the largest column. You'll find yourself in another section of the first floor. Beat the trainer, and continue walking along the room until you see a stairs down. Take the stairs, and you'll end up in the basement of Cinnabar Mansion. From here, go to the room on your left. There will be another switch here. Turned it on and head back to the stairs. From the stairs, head North to the now unlocked room. From here, head north until you see another statue. Turn the switch on and head to your left. You should see a room with some plants and an item on the center. Take the item, and you'll find that it's the gym key.