Well, darling, in Pokemon Ash Gray, you can't actually give the GS Ball to Professor Oak. The GS Ball is an event item that was originally intended to unlock an event in the Japanese games, but it was never officially released in other regions. So, unfortunately, you're out of luck if you're trying to hand over that shiny ball to the good professor.
Ash catches all the pokemon
Pokemon ash grey is not an official game It is a Rom hack of Pokemon Firered
I think koga
what we have to do after entering the xanadu nursery in pokemon ash gray
Misty will give you the Super Rod after watching her mermaid performance in Pokémon Ash Gray.
Ash catches all the pokemon
Pokemon ash grey is not an official game It is a Rom hack of Pokemon FireRed
Pokemon ash grey is not an official game It is a Rom hack of Pokemon Firered
Professor Oak told Ash to get the GS ball and met Tracy. Ash entered the orange league and won then went back to prof oak and Brock stayed there with a professor called Ivy. Ash gave him the GS and Tracy was fascinated to see prof oak and wanted to stay with him
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Pokemon ash grey is not an official game It is a Rom hack of Pokemon FireRed
I think koga
what we have to do after entering the xanadu nursery in pokemon ash gray
Mankey right before cerulean
He goes with Prof. Oak and his mom because Prof. Oak is having a meeting there. So Ash sees all the new Pokemon they have there and decides to stay and start a journey there.
Misty will give you the Super Rod after watching her mermaid performance in Pokémon Ash Gray.
The ANSWER is in the CONTROL ROOM. x)