Defeat the final boss and collect the acorn without taking any damage (Level 5-1)

Collect all seeds and acorns in Level 4-B

Collect all seeds and acorns in Level 4-2

Collect all seeds and acorns in Level 4-1

Reach the top of the wooden stake in Level 4-1

Collect all seeds and acorns in Level 3-B

Collect all seeds and acorns in Level 3-2

Collect all seeds and acorns in Level 3-1

Collect all seeds and acorns in Level 2-B

Beat Level 2-3 and exit through the exit pot without taking any damage

Collect all the seeds and acorns in Level 2-1

Collect all the seeds and acorns in Level 1-B

Collect all seeds and acorns for Level 1-2