Become friends with both Magnemite and Magneton, and then Electrode will come to play.
You see him in The Haunted Zone or the Haunted House.
Beat Voltorb after you complete Rotom's Attraction, and he will be in the room with Gengar
Not there
Beach zone
in the granite zone
he is in the flower zone
Type in the Password: 73938790
Play park
Lava Zone.
set a record
Battle
He is in the beach zone
Around the Cavern Zone
Talk to everyone