4-Castle (NSMB)

This level is full of of Thwomps. Not far from the start, Thwomps appear, but first, there is a few swinging platforms. At one, a Star Coin appears if you hop at its highest point. A Dry Bones also appears. After a few more swinging platforms and Thwomps, a Super Thwomp appears. After it smashes 2 rows of concrete bricks, grab the Star Coin. After a few Dry Bones, Thwomps, and a Podoboo, the swinging platforms appear. Some Dry Bones are on them. Podoboos jump from under. You can, on a small platform above the lava, get a Star Coin. Afterwards, you will duel Mega Goomba.