Here is the full list of all 14 Tumbleweed Destiny achievements.
Defeated the monster.
Destroyed cactus 60 times.
Completed your first rebirth.
Destroyed cactus 40 times.
Destroyed cactus 20 times.
Destroyed cactus.
Completed the rebirth 3 times.
Completed the rebirth 6 times.
Completed the rebirth 10 times.
Defeated monster 10 times.
Defeated monster 20 times.
Defeated monster 30 times.
Saved the Earth.
Could not save the Earth.