Flower 3 (18)

Once you have the flower, head back right across the watery area. Then, go all the way up the slope to the top.

Make eggs out of Lakitu enemies, and throw eggs to defeat the piranha plants.

Shoot an egg at the green Switch Block above, then drop into the water and hit the red Switch Block twice.

Go through the passage above and continue right to an outside area.

Go right and jump into the water below. Defeat the Shy Guy, then jump into the water as you move to the left, allowing you to pass under the wall.

When you emerge, defeat another Shy Guy and collect two coins, one of which is a red coin (11).

Get back to the other side and head right across three pipes. Swim to a ledge further to the right.

Shoot an egg at the block on the ceiling to make the wall above it collapse. Jump into the water so that the wall pushes you under.

Move to the right to pass under the wall, then surface at the other side and defeat a Shy Guy.

Hit the winged cloud for an extra life and collect the coins, including a red coin (12).

Head through the bumpers to the left, then flutter to the left ledge and make your way upward and to the right.

Jump over the rolling fake flower, then stand on the left side of the Chomp Rock ahead to roll it to the left. Push it to the left, then jump from it to reach the higher ledge.

Enter the pipe to reach a new room. Collect eggs from the flower that spits them out, then shoot them at the bubble covering the pipe. The bubble will eat the eggs until it explodes.

Go down into the room below. Hop through the Middle Ring and run up the steep hill. Hit the egg block until you have six eggs, then jump from it to the high ledge.

Follow it to the left, killing two crab enemies and collecting two red coins at the end (14).

Head back to the egg block and refill, then go directly to the left. Throw an egg to defeat the piranha plant, then jump to collect the regular coins and another red coin (15).

Head right once again, but this time, follow the slope going downward. When you reach the yellow platforms, drop into that room and defeat the flying enemies, then collect the red coin (16) in the middle.

Continue down the hill to the left and hop onto the next ledge to the left. Avoid the hanging plant when it comes down and head left, jumping up the thin ledges so that you end up next to the regular piranha plant. Kill it.

Trigger the hanging plant to go down so you can collect the red coin (17) to the right. Wait for the hanging plant to reset before dropping to the lower ledge and heading to the left.

In there, defeat the piranha plants while avoiding their projectiles. Jump to collect two more red coins (19), then shoot an egg to grab the third Flower at the far left.