You can battle Giovanni but you can only battle Giovanni with the event Celebi that was distributed at Gamestop retail stores for a limited time which is no longer available.
The serious last time you beat Giovanni is at the viridian city Pokemon gym.
Neutrino was not an official pokemon at the time of Pokemon Yellow. There is still no official pokemon species named "neutrino".
You can battle Wally a second time after defeating the Pokemon League.
Yes it can. Using the Time Capsule in Gold and Silver it's possible to trade between Red, Blue, and Yellow.
You can battle Giovanni but you can only battle Giovanni with the event Celebi that was distributed at Gamestop retail stores for a limited time which is no longer available.
Yes, you can battle Giovanni in Pokémon SoulSilver but you need to have the Celebi that was distributed for a limited time which is no longer available.
You cannot battle Giovanni in Pokemon HeartGold and SoulSilver through normal game play. The eighth gym is run by Blue, not Giovanni, in these Pokemon versions. However, if you obtained a Celebi via a Nintendo Wi-Fi event (which has long since passed) and go to the Celebi Shrine in the Ilex Forest, the Celebi will take you through time, and you will eventually battle Giovanni.
The serious last time you beat Giovanni is at the viridian city Pokemon gym.
If you mean your Rival's dad, yes but you need to unlock the Pichu event where Celebi sends you back in time.
I'm guessing you mean Giovanni? Giovanni does not appear in the storyline of HGSS, however through a special event Celebi (not yet available in the US) you can go to the Ilex forest and travel back in time where you will be able to battle a young Giovanni.
find celebie and go back in time you will find Giovanni hiding in a cave.
In Pokémon HeartGold, you cannot find Giovanni without a special "Fateful Encounter" Celebi that has not been released yet. With this special event Celebi, you will be sent back in time to when you'll see Giovanni and your Rival arguing with 1 another and then you'll be transported into an area in Tohjo Falls which is when you'll be able to do battle with Giovanni.
I believe you can get it after fighting Giovanni for the last time.
there is no time machine
You can take your celebi to the shrine in ilex forest. Lyra will appear and celebi will take you back in time. you see your rival talking with team rocket's leader, Giovanni. Celebi will then take you to a small cave where you battle Giovanni. His Pokemon are between levels 40 and 50.
Neutrino was not an official pokemon at the time of Pokemon Yellow. There is still no official pokemon species named "neutrino".