How to Get Through the Pokemon Mansion on Fire Red With GBA

Enter the mansion, walk left and then north to encounter a pile of rocks on the ground. Head left again to find a trainer waiting ahead. Battle the trainer and walk next to the trainer to find a Pokemon statue. Press the "A" button to inspect it.

Activate the button hidden on the statue by pressing the "A" button. Walk right and head up the nearby set of stairs. Head up the next set of stairs and walk south to battle the next trainer.

Walk to the table some distance away from the trainer and inspect the book sitting atop. Go back downstairs to battle another trainer, heading south after defeating them. Follow the pathway built around a large rock and check another book on the table ahead. Return to the set of stairs used to reach the hallway to find another Pokemon statue.

Check the statue with the "A" button and head north after activating the corresponding switch. Go to the stairs ahead, heading east to activate another Pokemon statue. Open the door behind the statue and walk south to battle a trainer. Continue south to a large black pit; fall into the left side to enter the basement. Battle the trainer near the stairs after leaving the dark area and continue downstairs.

Check the Pokemon statue on the table next to the Pokemon trainer to open another door. Walk to the stairs and head right, heading north to battle another trainer. Continue north into an empty room; activate the Pokemon statue here to open another door. Go into the second room and check the table inside to receive the "Secret Key." Use an "Escape Rope" to exit the Mansion.