If by "power" you mean "attack", Attack is a modifier that effects the strength of your physical moves.
You have to trade it from Firered/Leafgreen in Pokemon firered/leafgreen you can find zapdos in power plant, but you need surf to get there.
Firered and leafgreen both can catch different Pokemon but there pokedex is the same, here is some examples: magmar only in leafgreen not firered, oddish in firered not leafgreen, ekans in firered not leafgreen, bellsprout in leafgreen not firered, pinsir in leafgreen not firered.
Firered power plant. Can't in leafgreen
If you mean Growlithe, then your answer is You cannot get it in Leafgreen. You can ONLY get Growlithe in FireRed.
You can't. The only way to get one is to get it in a trade (by the way, its in the power plant in firered and leafgreen).
Not in Pokemon leafgreen only in Pokemon Firered never ever in Pokemon leafgreen And in Pokemon firered it is rare in power plant not available in Pokemon leafgreen?
In firered, it is in the powerplant, but you can't get them in leafgreen. You have to trade it from firered.
Get one from firered which can catch one in the power plant.
Migrate it from leafgreen/Firered Migrate it from leafgreen/Firered
you can not reduce evs in leafgreen and firered
Firered and Leafgreen were released in stores in 2004.
Ruby:Trade from FireRed/LeafGreen. Sapphire:Trade from FireRed/LeafGreen. Emerald:Trade from FireRed/LeafGreen. FireRed:Routes 1,2,3,5,6,12,13,14,15,25. LeafGreen:Routes 1,2,3,5,6,12,13,14,15,25. Hope this helped =]