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