In Pokémon Blue, You can only catch the first 151 pokémon, as no others had been created yet. Seeing as all together there are 493 pokémon at the moment, 382 pokémon aren't in pokémon blue. For a list of Pokémon, see http://en.wikipedia.org/wiki/List_of_Pok%C3%A9mon
Syther is not available in Blue version and must be transferred from Red version.
no
not possible
No, but you can in yellow
The starter pokemon for Pokemon Blue version are: Bulbasaur, Charmander, and Squirtle.
Pikachu does not walk with its trainer in the blue version. Only in the yellow version does it walk by its trainer.
Ekans cannot be caught in Pokemon Blue version. You need to trade one from Pokemon Red. Similarly, Sandshrew is exclusive to Pokemon Blue.
On Pokemon platinum, you cannot move or migrate Pokemon from Pokemon silver or Pokemon blue version. It can only be done from the Gameboy advanced games. Those are Pokemon Ruby, Sapphire, and Emerald version.
ELECTABUZZ..veronica
Cinnibar Island
you can't
you can,t