Flower 4 (49)

As soon as you grab the flower, flutter to the right platform.

If you already found the Key, unlock the door leading onward.

In the next area, go through the Middle Ring and collect the eggs to the right.

Shoot eggs at the wheel hanging from the track to move the platform along. Avoid moving too quickly to prevent accidents.

Head right and upward along the track, jumping left to grab a red coin (13) and more eggs.

Shoot the wheel above the spiked block to the right to raise it, then quickly shoot the wheel on your platform to get past.

Continue right and flutter into the high corner to get another red coin (14).

Go down and grab more eggs.

As you head right, hit the three yellow egg blocks to get those eggs.

Raise the gate, then speed past on your platform.

Jump to collect another red coin (15) in the formation as you head upward.

Go right to the end of the track, then eat the spiked balls that the piranha plant spits at you.

Make eggs out of the spiked balls, then shoot the winged cloud above the plant to make a Key fall.

Use eggs to defeat the plant, then flutter to the ledge and use the Key to exit through the door.

In the next room, deal with super fast Arrow Wheels (moving obstacles) to get through the spike-lined passage. This requires strategic jumping and fluttering to keep moving in the right direction without hitting spikes.

Obtain three red coins (18) along the way; they are in the middle of cross formations at each corner.

In the upper-left corner, grab a Flower.