Original: There are six power-ups available in New Super Mario Bros.; the game allows the player to store an extra power-up when he is already using one, a feature carried over from Super Mario World. Three power-ups from Super Mario Bros. return: the Super Mushroom makes Mario grow in size, the Fire Flower lets Mario throw fireballs, and the Starman makes Mario invincible temporarily.
Simplified: Before and after a level, Mario is on a world map, which was last used in Super Mario World.