In the games of the Mario series, game play primarily involves jumping on enemies and avoiding enemy attacks. In later 3D games, close quarters fights were incorporated. Intense emphasis on reaching various goals permeates the series; such goals include defeating enemies, reaching specific points, or solving puzzles. Throughout the series, collecting power-ups has been an integral.the levels are linear, and are usually divided into different worlds, each with a certaIn Super Mario Bros. the game is divided into eight playable worlds, and each world contains between 8–10 levels and several bonus stages. The worlds are themed, with each level containing characteristics of that theme. All of the levels are shown on a map, which allows the player to take different paths through the game. The order in which all these elements are arranged are not necessarily linear, and the player is thus permitted at times to skip a level or play it out of order. Once a level is cleared, it cannot be replayed. Super Mario Bros. 3 has multiple levels in every world featuring a boss at the end. At the end of all but the last world is an airship called a Doom Ship, featuring a scrolling level and one of Browsers at the end. The game introduced a diverse array of new power ups, allowing Mario to take flight for the first time by becoming Raccoon Mario. The final boss is again Browser.in number of hidden items and secret warp pipes. Early 2D games used levels with only one exit, then forcing the player to advance to the next sequential level. Super Mario Bros. 3 was the first game to use an over world. In the game, levels are shown on a map, and the player can take different paths through the game. The order in which all these elements are arranged is not necessarily linear, which often allows the player to skip them or play them in different order. Super Mario World introduced levels with multiple exits. Unlike in Super Mario Bros. 3, where once a level is cleared, the player can choose the next level in the over world, in Super Mario World, the way the player exits the level dictates which path opens to player in the over world. Also, Super Mario World allows players to play completed levels more than once, while Super Mario Bros. 3 forces you to continue and the level will not be playable until a new game is begun.
Super Mario Bros is the first traditional Mario linear 2D platform game, where game play consists of a side scrolling level. In this game, it is established that Mario and Luigi live in the Mushroom Kingdom, where they must rescue Princess Toadstool (later called Princess Peach) from Browser. The game consists of eight worlds with four sub-levels in each world. Though each world is different, the fourth sub-world is always a fortress or castle. At the end of each castle level, Mario or Luigi fights Browser (though if one of the brothers throws five fireballs at Browser during the first seven battles, it is revealed that he is actually a different enemy in disguise). The game was immensely successful, and is the second best-selling video game to date
