Here is the full list of all 25 Ant-gravity: Tinys Adventure achievements.
Complete World 1 - Discovery Den
Complete World 2 - Sharp Desert
Complete World 3 - Crafty Jungle
Complete World 4 - Shooting Shore
Complete World 5 - Empirical Workshop
Complete all stages
Complete 100% in all stages
Defeat Mantis Boss without using extra ants
Defeat Flea Boss in 30 seconds or less
Defeat Blowfly Boss without breaking its shield
Defeat Crab Boss without using the Helmet and Cannon
Defeat the Final Boss rotating the gravity 6 times or less
It is not impossible
Use the Iframes to find a way in
\[T]/
Use an improvised vehicle
It is your companion
Complete Stage 3-4 in 41 seconds or less
It seems hostile, but it helps you
Find a shortcut in Stage 4-11
Find the secret party of great games
Release the enemies, run for your life and survive
Complete the game with no dead bodies
Complete the game in 1 hour or less
Complete the game in 3 hours or less