Fireball is Mario & Luigi's Standered Special in Super Smash Bros. Generations. Mario fires a red fireball out of his hand. Unlike in Super Mario Bros., they has a short range. They has a relation in SSBB. Mario's can move quickly.
Luigi's fireball has a differ than Mario's. Luigi's has a smaller range. His has a lack of gravity. His fireball is green.
NES - Super Mario Bros. 1985