Note: Unlike other Mario games, there are 12 worlds. World 0: The Introduction Mario & Luigi were running around outside of the Mario House. When a missile came, they hit the dirt for cover. Mario, with his hat ockward, looked up, and saw it was Bowser and the Koopalings who shot at them. They shot a lot more, and zoomed off to Peach's Castle. Worried, the Mario Bros. took off, avoiding the Airship's fire. When they came over to Toad Town, the place was on fire, and 3 Toads were stuck in their houses. Mario must use his powerful hammer and Luigi must use his high jump to rescue all of them, and open the gate. Now Mario & Luigi must get through stomping on Koopas and Goombas. But when they came to the Chamber Door, they had to fight a mini-boss, Hammer Bros. Beating them, they rush in,