Pikachu

He is the one who drives people crazy

Pikachu is a very rude electrocuter. It electrocutes all day long, and if it ever stops, it's probably dead.

Chew on Pikachu.

Though Pikachu is only 25th Pokemon, he has hijacked the whole system and completely taken over the world with his his hypnotic cuteness posting himself on airplanes and creating Pikachu festivals in order to worship him with. Don't think he's the cutest Pokemon, too bad, he's going to be everywhere you look anyway. (Almost as bad as Hello Kitty).

All humans HAVE to have a Pikachu if they want to be the main character. Sorry.