3 but you need a mach bike and you need to know rock smash to get to the top.
mirage tower only appears in pokemon emerald.
In Pokemon Emerald, The Mirage Tower appears randomly. All you have to do to make it appear is keep going back-and-forth from Fiery Path to the Desert and it should appear. Just make sure you have the Mach Bike, You'll need it inside the tower to get past the fragile sand floors. And at the end of the Mirage Tower, you'll get a nice suprise! :)
In the desert and in mirage tower.
go into the desert,and find the mirage tower
they are at the top of mirage tower the tower in the desert north of mauville city
In the Mirage Tower nefore you get the Fossil
Ditto is found in mirage tower you can make the tower appear after talking to the fossil maniac.
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Mirage Tower is in the desert around the enterance near Mauville. It only appears every once in awhile. I'm not sure how often though.
In Pokémon Emerald, Mirage Tower will appear in the Desert that is to the North of Mauville City however it will only appear once you have spoken to the Ruin Maniac in Fallarbor Town. Once you head into the Mirage Tower, you will need to use the Bike that is the Mach Spike because of the various sensitive cracks in the floors. However once you have picked 1 of the Fossils then it (the Mirage Tower) will disappear and it will not return at all.
It will disappear and reappear in the desert on Route 111 as the player visits and leaves the Route.Do not confuse it with Mirage Island.
From Prince Kayne:on certain days/times a tower appears the Mirage Tower near the southern entrance of the desert.