2D fighting games are those that feature one-on-one fighting using 2D sprites. Punching, kicking and special moves are all an important part of this genre, but it should not be confused with side-scrolling combat titles such as Double Dragon or Final Fight. Titles in this style typically have a time limit and consist of a specific number of rounds, and there are usually multiple characters to choose from with different abilities. In general, the object is to drain an opponent's life meter to win each round or bout, which is accomplished by stringing together moves or combinations (commonly referred to as combos).