Editing World 4-2 (Super Mario Bros.)

Like with other underground levels, the player starts at a cutscene with their character walking into a [[Warp Pipe]], and then drops down into the level. Up ahead are large gaps and narrow platforms the player has to [[jump]] across, followed by a [[Brick Block]] structure with the final block containing a power-up. Over the ledge are a trio of [[Goomba|Little Goomba]]s, and a [[Coin Block]] can be found above the left Little Goomba. Beyond the Little Goombas are a collection of [[? Block]]s, with the middle one on the bottom-right row containing a power-up. After a downward moving [[lift]] are invisible blocks that the player can use to reach a [[beanstalk]] in the left Brick Block above, which leads to a [[Warp Zone]] with pipes leading to Worlds [[World 6 (Super Mario Bros.)|6]], [[World 7 (Super Mario Bros.)|7]], and [[World 8 (Super Mario Bros.)|8]]. (In ''[[VS. Super Mario Bros.]]'', there is no pipe leading to Worlds 7 and 8.) Past the beanstalk are four pipes with [[Piranha Plant]]s in them and a [[Koopa Troopa]] and Buzzy Beetles between them. One of the blocks after the second pipe contains a [[Super Star|Starman]], and the third pipe leads to an area with [[coin]]s. After the fourth pipe are two Koopa Troopas, some stone platforms, and moving lifts with blocks between them, in one of which in the middle row contains a power-up. After the lifts is the exit pipe from the coin area, followed by two more pipes, a Buzzy Beetle walking down a set of stairs, and downward moving lifts. In the first Brick Block afterward is a power-up, and on top of the row of blocks are coins. Using a set of stairs to get over a pipe, the player can reach the Warp Pipe to the end of the level. If the player goes over the exit pipe, they can reach a Warp Zone to [[World 5 (Super Mario Bros.)|World 5]].