Find out for yourself what it looks like.
Mossdeep locked door.
In pokémon ruby and sapphire e reader trainers will appear in the back room.
He will be standing in front of the locked door and he will ask you to battle the trainer behind the door who happens to be the trainer on your card.
In pokémon omega ruby and alpha sapphire the old man mentions he used to be a secret base expert.
In pokémon ruby and sapphire and pokémon omega ruby and alpha sapphire these is an old man with a house with a door on the back wall.
Shoutout to u avalonmelody for this helpful fix.
Upped the contrast of the image for all three qrs i tested it with my own alpha sapphire version hopefully.
Hm surf is needed to get here and you will be able to use hm dive from beating the gym leaders here.
Once you scan it you will be able to enter the locked room in the old man s house which is junichi masuda s secret base.
Tate and liza 7th are the gym leaders here who both psychic type pokémon.
Say yes and the door will open to reveal that trainer.
Go back to that hose afterward and talk to the man.
It is also apparent that steven lives here.
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Scan junichi masuda s secret base qr code.
In ruby sapphire and emerald the rocket launch center is taken over by team magma for rocket fuel later in the storyline.
Find his secret base in mossdeep city.
Since people were asking here are the rest of the pokemon dev s secret bases.