World 1-4 (NSMB)
World 1-4 is one of the many levels in New Super Mario Bros.
Overview
World 1-4 is a grassy meadow, much like World 1-1. The first ? Block (which is on the ground, and not floating, unlike most ?-Blocks) contains a Mushroom. A ?-Block containing a Mini Mushroom is later found in the level. The Mini-Mushroom can be used to travel into a small pipe nearby that lead to the first Star Coin.
A wall made up of Brick Blocks and Cement Blocks that are blocking a Pipe. The wall is shaped in such a way that it's possible to throw a Koopa Shell on it, which will break all of the Blocks and will eventually allow Mario/Luigi to enter it. Alternatively, the player could use a Mega Mushroom to break the block Wall, although the Pipe could end up being accidentally broken. The pipe leads to a cave that contains a Star Coin that is reached by using a P-Switch that turn every Brick Block into a Coin and vice-versa.
The third Star Coin is found in a small gap just before the level's flagpole.
Infinite 1-Up Trick
This level posses one of the few spots of the game where it is possible to generate an infinite number of Extra Lives. Just after the Block Wall, two pipes can be found nearby, both of which produce an infinite number of Goombas. The trick is to throw a Koopa Shell between the two pipes, and the Shell will hit the Goombas produced by the Pipe and eventually, the Player will gain an Extra Life for every Goomba hit. Since the Pipes never stop producing Goombas and the shell won't disappear until the player goes too far from it, it is possible to collect up to 99 1-Ups.
