Here is the full list of all 16 Tiny Guardians achievements.
Complete 12 Challenge levels (Hard mode).
Get 3 stars in 12 story levels (Hard Mode).
Complete 12 Story levels (Hard Mode).
Kill 100 enemies with Starfall.
Revive 1000 units with Regen.
Have 12 units in your collection.
Defeat the Ringmaster and earn 4 stars for that level.
Complete 12 Challenge levels.
Complete 25 quests.
Earn a total of 56 Stars.
Complete 7 Challenge levels.
Kill 30 units with Trap in a single level.
Defeat the Ringmaster.
Earn a total of 35 stars.
Earn a total of 15 stars.
Earn a total of 8 stars.