You can NOT battle Professor Oak in Pokemon FireRed Version, even with an Action Replay
you cant
No
Catch, trade, and battle Pokemon
No.
mr. Pokemon house
You can't battle him. But you can find him in eterna city after you got the pokedex upgrade off him (he is in the empty house).
The yellow flute, in Pokemon firered and leafgreen, is used to snap a Pokemon out of confusion in the middle of battle.
Pallet town in Kanto
ofcource you can
beet a gym battle
no
He won't. You only get one.