you need the pokeflut
there is no mystic sleeping
Use the pokeflute.
There is no sleeping Pokemon in the Tanoby Chambers on Pokemon FireRed. However Unown do appear in these Ruins once you've solved the Tanoby Key puzzle.
WHOS THAT POKEMON ITS... snorlax(the only sleeping pokemon that can actualy b an obstacle)
get the pokeflute.
beat it
There is an old lady's house in Pokemon FireRed that has some boxes you can get past. The only way to get past them is to use the E reader hardware device.
Use the pokeflute.
Beat it or run or catch it.
You can't. There's nothing beyond them so you can't get past them.
Get the flute
You have to get the poke flute, which you have to get from Mr. Fiji who is in Laverndar town.