Thunder

Thunder may be referring to:
 * Pikachu's special move Thunder from the Super Smash Bros.'' series.
 * Pichu's special move Thunder from Super Smash Bros. Melee.
 * PK Thunder, a movement of Ness and Lucas in the Super Smash Bros. series and Super Smash Bros. Brawl, respectively.
 * Thunderhand, a move used by Luigi in Mario & Luigi: Superstar Saga.
 * Thunderbolt, an item in the Mario Kart series and a special move in Super Mario RPG: Legend of the Seven Stars.