Episode 6
its in the southern part of cerulean city
In Pokémon HeartGold, you can gain entry into Cerulean Cave once you've defeated Blue.
In Pokémon Blue you can find Articuno (on the Seafoam Islands), Zapdos (at the Power Plant), Moltres (in Victory Road) and Mewtwo (in the Cerulean Cave).
Any episode she enters a contest
the Pokemon was azelf or it could have been mespert or uxie one of those
Episode: 6: Cerulean Blues Episode: 9: The Blue Badge of Courage Episode: 12: A Date with Delcatty Episode: 16: Luvdisc is a Many Splendor Things
if can go to cerulean cave you can
you get mewtwo in the cave next to cerulean c:
Its in the power plant east of Cerulean.
North of Cerulean city.
its in the southern part of cerulean city
You can get Bulbasaur in Pokemon Red, Green and Blue from Professor Oak at the beginning of the game but in Pokemon Yellow you can get Bulbasaur in Cerulean City the house beside the Pokemon Center also beside the Cerulean Gym.
beat Giovanni in the game corner in cerulean city
After defeating Blue, go to Cerulean Cape between 4:00 PM and 6:00PM unless Suicune is there.
You must beat the Elite Four before you are allowed access to it.
You can capture one in cerulean cave or train a magnemite to level 25.
I know that on pokemon blue there is a mewtwo in the cave at cerulean, as for leaf green or fire red I don't know but I would guess that there is a mew or some other sort of rare pokemon inside