Thunder

Thunder may refer to:
 * Lightning, a recurring item in the Super Mario franchise.
 * Thunderbolt, a special move in Super Mario RPG: Legend of the Seven Stars.
 * Thunder Bolt, an item in the Paper Mario series.
 * One of the following special moves in the Super Smash Bros. series:
 * Pikachu's Thunder, based on the Pokémon move.
 * Pichu's Thunder, based on the Pokémon move.
 * Robin's Thunder, based on the tome from the Fire Emblem series.