World 3-Castle (New Super Mario Bros.)

 is the castle and last level of World 3 in New Super Mario Bros.. The boss here is Cheepskipper.

Layout
The beginning of this level is filled with bars of spikes that damage Mario if touched. On the fifth spiked bar, Mario can get a Star Coin. After the spiked bars are a few Whomps that Mario can get rid of by Ground Pounding on them when they fall down. To get the second Star coin, Mario must continue to the Donut Lift. There, he must use the rope to get enough momentum and swing to the platform on the left. Jump over the ceiling, wait for the Whomp to fall over, and grab the Star Coin and land on him. Go back to the donut holes, grab the rope, and jump over a Giant Whomp once he falls down. Here, Mario is faced with more spiked bars. When the player reaches the double doors, go past them to reach the third Star Coin. While the spiked bar is going up, quickly go into the water and jump to the left, then to the right before the bar goes back down (It helps to be Super Mario). Enter the double doors to face Cheepskipper and three normal Cheep-Cheep. To beat Cheepskipper, Mario needs to wait until he jumps over the bridge. Then he needs to stomp the huge Cheep-Cheep three times. After defeating Cheepskipper, Mario goes to World 5.

Star Coins

 * Star Coin 1 - The first Star Coin is located in a crevice. Jump down and get it, but be careful with the spiked pillars.
 * Star Coin 2 - Do not destroy the Whomp on the spikes. When Mario or Luigi reach the area with the rope, swing to the left side and jump over the left wall. Get the Star Coin and the Whomp will serve as a platform.
 * Star Coin 3 - At the end of the level, quickly wall jump off the wall and get the Star Coin while avoiding the spikes and spiked pillar. You can also do it as Small or Mini Mario/Luigi.

Enemies

 * Dry Bones
 * Whomp
 * Super-Whomp
 * Cheep-Cheep
 * Skewer
 * Cheepskipper (boss)