From the Super Mario Wiki
The level begins with some coins, along with the first Pink Coin in a Brick Block enclosure, and must use a Big Koopa Troopa to collect it. The second Pink Coin is near a Big Goomba and a trampoline, and the final Pink Coin is up above, near a Big Wiggler and some Brick Blocks. Mario must then open the Key Door and make his way past some enemies before reaching a Checkpoint Flag and a warp pipe leading to an area with Big Thwomps and Burners. This follows with an area with Skewers and Koopa Troopas, along with another Checkpoint Flag. Mario will then ride a Lava Lift to a P Switch, and must travel across more Skewers, reaching a segment with Fire Bars. A Super Star in a ? Block can be found, along with Bowser, followed by a beanstalk leading to another warp pipe. Mario must then travel across some Flimsy Lifts to the Goal Pole.