World 4-Tower (New Super Mario Bros.)

 is the Tower level of World 4.

Layout
This level is filled with lava. Mario should jump on the moving gray blocks to get to the door. In the next area, lava rapidly rises. First, get on the other side of the metal fence. If the player stays to the left, they will eventually reach the first Star Coin. The second Star Coin is in between a few Amps. Next, Mario should avoid the spikes, and continue climbing. If Mario stays to the right, then he'll find the last Star Coin. A Red Coin Ring is found near the end of the level. This time, Bowser Jr. will be harder to defeat. If the player tries to jump on him, he'll go inside his spiky shell. Wait until he throws a Green Shell. Then, Mario should jump on the shell to stop it, and he should throw it at Bowser Jr., which stuns him. Only then can Mario jump on him. Doing this three times will defeat Bowser Jr.

Star Coins

 * Star Coin 1 - Flip to the back side of the fence and the first Coin should be on the left side of the second area. Make sure to flip back as soon as possible.
 * Star Coin 2 - Stay on the right side of the level and the second Star Coin is guarded by two Amps.
 * Star Coin 3 - Make sure Mario or Luigi are on the front side of the fence. Take the right side of the path and the Star Coin should be in easy reach, but be careful with the rising magma.

Enemies

 * Dry Bones
 * Amps
 * Bowser Jr. (mini boss)