Pikachu (SSB)/Neutral attack
Pikachu headbutts forward, doing 2% damage for each hit and Pikachu can headbutt rapidly as much as it likes when the player presses the A button rapidly. When it uses the move rapidly, it is easy to chain with the other headbutts. And with its good shield stun, it can break a opponent's shield on a wall and can be used to perform a jab grab, where Pikachu stuns an opponent with this move and follows with a grab. It may have a little ending lag once Pikachu is done using this move however.