 The player is given a number of lives, which are lost if Mario comes into contact with an enemy, falls into a bottomless pit, gets crushed, or runs out of time.The game ends when the player runs out of lives, although the player can continue from the most recent save point (a successfully completed castle, fortress or haunted house) by selecting "Continue".Each world features a final stage with a boss to defeat; each of the seven worlds features fortresses controlled by one of the Koopalings, and the player also battles Bowser in his castle in the seventh and final world.