World 2-2 (Super Mario Bros. 2)
Very similar to the first level; outside exploration is first, followed by an underground cavern. There is also an additional cavern where an extra life can be gained. In the first cavern, the player can get a Magical Potion. After the cavern there are six jars. Five of them are filled with red turtle shells and the other jar has a small heart and a POW. Then there is a large pit filled with Shyguys. After going down the large pit there is a door that leads to Red Birdo, who shoots both fireballs and eggs. This is the first time Birdo can do that (although Mushroom Blocks can be used instead to battle her here).