There is a cheat, if you trade a Pokemon of yours holding a masterball to someone with Emerald they can clone that Pokemon and what its holding and then trade back!
cryus gives you one when you beat him
Their are 7 HM's available in Firered.
It evolves once in FireRed into Togetic
without an action replay u get it from the team galactic leader but u have to use masterball cheat with action replay (if u want 999)
no you can get as many as you want
Only one of three.
At least 2 badges are needed to trade from leafgreen to firered.
All 28 Unown are available in Pokémon FireRed within the Tanoby Ruins on 7 Island.
There are 5 oak aides.
Slowpoke is not in firered only leafgreen can get it trade one to firered to get it.