New Super Mario Bros.: 6-Castle

It's time to finish this level! We have to platform onto moving stone slab platforms over the lava. Time your jumps carefully. The 1st Star Coin is just over the lava, so use a Koopa shel to reach it, after the stone platform moves out of the way. There are also stone platforms bobbing in the lava. The 2nd Star Coin is over the lava as well, but a small stone platform will come out of the lava briefly so you can get it. You'll reach the midpoint and be able to go over the ceiling. Keep going to the right while over the ceiling to reach the 3rd Star Coin. Go under the ceiling, avoiding the spikes and being crushed. Take the door at the end and climb up the moving stones. This requires good timing, but you are not in any danger. At the top is the boss door, which leads outside. There's a Monty Mole in a tank. The tank will periodically spin and fire Bullet Bills. Every once in a while the Monty Mole will peek his head out of the tank, sometimes to throw a Bob-omb. This is when you should stomp him. Doing so will make the tank spin and the tank will gain a new turret, so it is taller and has another Bill Blaster. Wait for the Monty Mole to appear again and stomp him. This will create another turret, which is more difficult to reach. You must do a running jump to reach the top to stomp him, so be vigilant and quick. Standing on the turret won't help much as you'll slide off the tank if it starts spinning. After the final hit, the tank explodes, Mario gets the key, and Bowser Jr. takes Peach to World 8. We'll be going to World 7 first.