Thunderspiking
Thunderspiking is a technique that Pikachu and Pichu can use by launching an opponent upwards (usually from an up smash) and using Thunder to KO opponents when they are near the upper blast line, scoring vertical KOs on opponents at much lower damage percentages. The technique is often used as a finisher of a combo.
In Super Smash Bros., Thunderspiking was very effective, as Thunder has a infinite vertical range, making it easier for Pikachu to get KOs by around 20%-30% less than just a up smash itself. Its however harder to pull the technique off in Super Smash Bros. Melee, as Thunder now strikes from a cloud at a fixed height, the falling speeds in general are faster, and the move is slower and more laggy. In Super Smash Bros. Brawl, Thunderspiking is more effective than in Melee and it is possible to combo into it with an up tilt, but opponents can air dodge out of the Thunder without becoming helpless.