The Maxim Tomato, usually misspelled as Maximum Tomato, is recovery item that appears in Super Smash Flash, and re-appears in Super Smash Flash 2. It is a red tomato with an "M" on it. When picked up, it restores a character's health by 50%. It is an item from the Kirby universe. In the Kirby games they would recover all your health and were usually found before boss battles and hidden areas.
Maxim Tomato as it appeared in Super Smash Flash.
Maxim Tomato's early design in Super Smash Flash 2.