The longer you charge this attack, the farther he'll go.
Quick Attack
He dashes in any direction. Input another direction to make him dash again.
Thunder
He calls down a thunderbolt. It's quite powerful, but will not pass through platforms right above Pikachu's head. If the platform is a good distance above Pikachu, the thunderbolt will travel through platforms and terrain.
Taunts
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Taunt
He starts crackling with electricity.
He waves to the camera, saying, "Pika, pikaaaa!"
He rolls around on the ground.
Final Smash
Volt Tackle: Pikachu transforms into a huge sphere of electricity that you can move around the screen to hit anything in the path. Be careful when time finishes because you can fall, and the smash itself is quite hard to control due to being fast.