World 4-5 (New Super Mario Bros.)

World 4-5 is the seventh level of World 4. It can be unlocked by clearing

Layout
This level is an underground level with Bob-ombs. Some bricks can only be destroyed by blowing up a Bob-omb. This is needed for Mario to get past some areas. This skill is also used to get the first Star Coin. To get the second Star Coin, the player must wait until a drawbridge goes up. Next, he must hit the Bob-omb above him, destroying some blocks, allowing him to get the coin. After a few more drawbridges, the player should notice one that has a pipe with blocks covering it. If Mario blows up a Bob-omb, he can go inside it and, by breaking more blocks with Bob-ombs, he can get the last Star Coin. Leaving the Warp Pipe is the Flagpole.

Star Coins

 * Star Coin 1 - Place a Bob-omb near the side of the box to blow it up and reveal the first Star Coin.
 * Star Coin 2 - When the drawbridge goes up, hit the Bob-omb and wait till it bloes up. Nab the coin and continue onward.
 * Star Coin 3 - Blow-up the blockage of the pipe with a carefully placed Bob-omb. Once inside, blow up the bricks with the Bob-ombs to reach the last coin. However, there are only 5 Bob-ombs located here, so preciseness is vital.

Enemies

 * Koopa Troopa
 * Spiny
 * Bob-omb