Epic yellow object made from Chuck Norris's guts and Charlie Sheen's blood. A living Tesla Coil. If his lightning was projected in real life, it would be around a hundred million volts, and a few hundred amps. AKA Deadly but awesome. Pikachu hates going into Pokeballs, and controls children's minds through it's total epicness. A male pikachu has a pointy tail, and a female has a heart. Pikachu is the god of adorable, fluffy things and is an apprentice for the god of high voltage, Nikola Tesla. Pikachu might cause seizures when zapping missiles though. Other than that, a tame one is extremely cuddly. Pikachu lost a lot of weight from the first season to now. That doesn't mean he's any less adorable and cute!
Today's kids will never know why Pikachu is always out of its pokeball... Pikachu, Plusle, Minun, Pachirisu, and Emolga are all related, according to Bulbapedia. Also, you can tell by looking at them. They all have circles on their faces, and they are all tiny, and they are all cute as fuck.
Joke: What is an electric Pokemon's capacitance measured in?
*Pika, pico meaning 10^-12, geddit?*