I do not think you can unless at the beginning, get him as yourself or partner.
you can get him on lighting field but he is really really really rare.
You will never know because ther are always different questions, but you can chosse pikachu as your partner if you do not become pikachu.
pikachu
If you mean which Character, I will say Charmender&Squirtle or Pikachu&Totodile.
No. Discharge is a fourth generation move, while Pokemon Blue Rescue Team is a third generation game.
After you defeat Rayquaza and clear the main plot, you can evolve your Pikachu by visiting Luminous Spring and evolving it with a Thunderstone.
Well, I was a pikachu and my partner was a totodile on my blue rescue team. I think you should be the pikachu and your partner is a fire or water type.
charmander, pikachu, torchic, bulbasaur, mudkip, skitty, meowth, treeko, squrtle
In Pokémon Mysery Dungeon: Blue Rescue Team, you can find the electric-type Pokémon that is called Pikachu within the dungeon that is called the Lightning Field and in the Lightning Field dungeon, you can find it on Floors 6, 7, 8, 9 and 10.
Yes, with the thunderstone.
Torchic with Pikachu as a your partner cause I beat all legendarys the first try, even groudon
Bulbasaur,Charmander,Squirtle,Pikachu,Chikorita,Cyndaquil,Totodile,Treecko,Torchic, and Mudkip.
every time yesterday i wanted to get pikachu and i got meowth twice